==================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K/A-1

           _X_ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                   For the fiscal year ended December 31, 2001

                                       OR

           __TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
             For the transition period from___________ to __________

                         Commission file number 1-12830

                                  BioTime, Inc.
             (Exact name of registrant as specified in its charter)

                   California                             94-3127919
         (State or other jurisdiction of              (I.R.S. Employer
         incorporation or organization)               Identification No.)

         935 Pardee Street, Berkeley, California            94710
        (Address of principal executive offices)         (Zip Code)

        Registrant's telephone number, including area code (510) 845-9535

           Securities registered pursuant to Section 12(b) of the Act:

                           Common Shares, no par value
                                (Title of Class)

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes _X_ No___

     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

     The   approximate   aggregate   market   value  of  voting  stock  held  by
nonaffiliates  of the  registrant was  $31,118,452 as of March 25, 2002.  Shares
held by each executive  officer and director and by each person who beneficially
owns more than 5% of the  outstanding  Common  Shares have been excluded in that
such persons may under certain  circumstances  be deemed to be affiliates.  This
determination of affiliate status is not necessarily a conclusive  determination
for other purposes.

                                   11,627,316
            (Number of Common Shares outstanding as of March 7, 2002)
                       Documents Incorporated by Reference
                                      None




Item 6. Selected Financial Data.

     The selected financial data as of, and for the periods ended,  December 31,
2001,  2000, 1999 and 1998, and June 30, 1998 and 1997 presented below have been
derived  from the audited  financial  statements  of the  Company.  The selected
financial  data  should  be read in  conjunction  with the  Company's  financial
statements  and notes  thereto  and  "Management's  Discussion  and  Analysis of
Financial Condition and Results of Operations" included elsewhere herein.

Statement of Operations Data:


                                     Year Ended                Six Months
                                    December 31,                 Ended      Year Ended   Year Ended
                       -------------------------------------- December 31,    June 30,     June 30,
                           2001         2000         1999         1998         1998          1997
                       ------------ ------------ ------------ ------------ ------------ --------------
                                                                         
REVENUE:
License fee              $      -    $      -   $  1,037,500 $    250,000  $ 1,150,000  $      62,500
Royalty from
  product sale              151,917      52,492          -            -            -              -
                       ------------------------- ------------ ------------ ------------ --------------
Total revenue               151,917      52,492    1,037,500      250,000    1,150,000         62,500
                       ------------------------- ------------ ------------ ------------ --------------
EXPENSES:
Research and
  development            (1,685,168) (3,362,841)  (4,900,521)  (1,723,860)  (3,048,775)    (2,136,325)
General and
  administrative         (1,961,342) (1,779,931)  (1,896,690)    (710,131)  (1,849,312)    (1,209,546)
                       ------------------------- ------------ ------------ ------------ --------------
Total expenses           (3,646,510) (5,142,772)  (6,797,211)  (2,433,991)  (4,898,087)    (3,345,871)
                       ------------------------- ------------ ------------ ------------ --------------

INTEREST EXPENSE
AND OTHER INCOME:
Interest expense           (278,576)        -            -            -            -              -
Other income                114,344     165,256      279,827       89,513      294,741        189,161
                       ------------ ------------ ------------ ------------ ------------ --------------
Total interest
  expense and
  other income             (164,232)    165,256      279,827       89,513      294,741        189,161
                       ------------ ------------ ------------ ------------ ------------ --------------

NET LOSS               $ (3,658,825)$(4,925,024) $(5,479,884) $(2,094,478) $(3,453,346) $  (3,094,210)
                       ============ ============ ============ ============ ============ ==============


BASIC AND DILUTED
LOSS PER SHARE         $     (0.32)      (0.44)        (0.51)       (0.21)       (0.35) $       (0.35)
                       ============ =========== ============ ============ ============  ==============
COMMON AND
EQUIVALENT SHARES
USED IN COMPUTING PER
SHARE
AMOUNTS:

BASIC AND DILUTED        11,562,108  11,042,087   10,688,100   10,008,468    9,833,156      8,877,024
                       ============ =========== ============ ============ ============ ===============


Balance Sheet Data:


                             December 31,     December 31,     December 31,     December 31,       June 30,         June 30,
                                2001             2000             1999             1998             1998             1997
                           --------------   --------------   --------------   --------------    -------------     ------------
                                                                                                 
Cash, cash equivalents
and short term
investments                   $ 1,652,748      $ 1,318,338     $  5,292,806      $ 2,429,014      $ 4,105,781      $ 7,811,634
Working Capital                 1,452,832        1,081,237        4,804,579        2,157,578        3,724,663        6,846,575
Total assets                    1,941,375        1,677,484        5,678,644        2,809,455        4,641,780        8,297,774
Shareholders' equity             (99,094)        1,317,735        5,083,132        2,384,752        4,014,750        6,536,106


                                                                24

Item 8.  Financial Statements and Supplementary Data

                          INDEX TO FINANCIAL STATEMENTS

                                                                           Pages
                                                                           -----

Independent Auditors' Report                                                36

Balance Sheets As of December 31, 2001 and
December 31, 2000                                                           37

Statements of Operations For the Years Ended
December 31, 2001, December 31, 2000, and December 31, 1999
and the Period From Inception  (November 30, 1990) to
December 31, 2001                                                           38

Statements of Shareholders' Equity (Deficit) For the Years Ended
December 31, 2001, December 31, 2000, and December 31, 1999, and
the Period From Inception (November 30, 1990) to December 31, 2001         39-41

Statements of Cash Flows For the Years Ended December 31, 2001,
December 31, 2000, and December 31, 1999,
and the Period From Inception (November 30, 1990) to
December 31, 2001                                                          42-43

Notes to Financial Statements                                              44-55

                                       35


INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Shareholders
BioTime, Inc.:

We have audited the accompanying balance sheets of BioTime,  Inc. (a development
stage company) as of December 31, 2001 and 2000,  and the related  statements of
operations,  shareholders'  equity  (deficit) and cash flows for the years ended
December  31,  2001,  2000,  and 1999,  and the period  from  November  30, 1990
(inception)  to  December  31,  2001.   These   financial   statements  are  the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audit to obtain  reasonable  assurance  about  whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our  opinion,  such  financial  statements  present  fairly,  in all material
respects,  the financial  position of BioTime,  Inc. as of December 31, 2001 and
2000,  and the results of its  operations and its cash flows for the years ended
December  31,  2001,  2000 and 1999,  and the  period  from  November  30,  1990
(inception)  to December 31, 2001,  in  conformity  with  accounting  principles
generally accepted in the United States of America.

The Company is in the development stage as of December 31, 2001. As discussed in
Note 1 to the  financial  statements,  successful  completion  of the  Company's
product  development  program and,  ultimately,  the  attainment  of  profitable
operations  is dependent  upon future  events,  including  maintaining  adequate
financing to fulfill its development  activities,  obtaining regulatory approval
for products ultimately developed, and achieving a level of revenues adequate to
support the Company's cost structure.


/s/DELOITTE & TOUCHE LLP
San Francisco, California
February 16, 2002
(March 27, 2002 as to Note 9 and the fourth paragraph of Note 1)

                                       36


                                                   BIOTIME, INC.
                                           (A Development Stage Company)


                                                  BALANCE SHEETS




                                                                                December 31,        December 31,
                                                                                    2001                2000
                                                                              -----------------   ----------------
                                                                                            
ASSETS

CURRENT ASSETS
Cash and cash equivalents                                                     $       1,652,748   $      1,318,338
Prepaid expenses and other current assets                                               109,431            122,648
                                                                              -----------------   ----------------
Total current assets                                                                  1,762,179          1,440,986
                                                                              -----------------   ----------------

EQUIPMENT, Net of accumulated depreciation of $409,331 and $352,104                     167,946            226,598
DEPOSITS AND OTHER ASSETS                                                                11,250              9,900
                                                                              -----------------   ----------------
TOTAL ASSETS                                                                  $       1,941,375   $      1,677,484
                                                                              =================   ================

LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)

CURRENT LIABILITIES
Accounts payable and accrued liabilities                                      $         309,347   $        359,749

COMMITMENTS (Note 6)

DEBENTURES, net of discount of $1,618,878                                             1,731,122

SHAREHOLDERS' EQUITY (DEFICIT):
Preferred Shares, no par value, undesignated as to Series,
 authorized 1,000,000 shares; none outstanding in 2001 and 2000 (Note 4)
Common Shares, no par value, authorized 40,000,000 shares; issued and
 outstanding shares; 11,627,316 in 2001 and 11,426,604 in 2000 (Note 4 )             30,602,003         28,360,007
Contributed Capital                                                                      93,972             93,972
Deficit accumulated during development stage                                        (30,795,069)       (27,136,244)
                                                                              -----------------   ----------------
Total shareholders' equity (deficit)                                                    (99,094)         1,317,735
                                                                              -----------------   ----------------
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)                          $       1,941,375   $      1,677,484
                                                                              =================   ================


See notes to financial statements.

                                                        37




                                                   BIOTIME, INC.
                                           (A Development Stage Company)

                                             STATEMENTS OF OPERATIONS



                                                   Year Ended
                                                  December 31,                     Period from Inception
                                    ----------------------------------------       (November 30, 1990)
                                        2001          2000          1999           to December 31, 2001
                                    ------------  ------------  ------------       --------------------
                                                                       
REVENUE:
License fee                         $      -      $     -       $ 1,037,500        $     2,500,000
Royalty from product sales              151,917        52,492        -                     204,409
                                    ------------  ------------  ------------       ---------------
Total revenue                           151,917        52,492     1,037,500             2, 704,409
                                    ------------  ------------  ------------       ---------------
EXPENSES:
Research and development             (1,685,168)   (3,362,841)   (4,900,521)           (21,630,518)
General and administrative           (1,961,342)   (1,779,931)   (1,896,690)           (13,427,727)
                                    ------------  ------------  ------------       ---------------
Total expenses                       (3,646,510)   (5,142,772)   (6,797,211)           (35,058,245)
                                    ------------  ------------  ------------       ---------------

INTEREST EXPENSE AND OTHER
INCOME:
Interest expense                       (278,576)        -             -                   (278,576)
Other income                            114,344       165,256       279,827              1,862,174
                                    ------------  ------------  ------------       ---------------
Total interest expense and other
   income                              (164,232)      165,256       279,827              1,583,598
                                    ------------  ------------  ------------       ---------------

NET LOSS                             (3,658,825)  $(4,925,024)$  (5,479,884)       $   (30,770,238)
                                    ============  ============  ============       ===============


BASIC AND DILUTED LOSS PER SHARE    $     (0.32)        (0.44)        (0.51)
                                    ============  ============  ============
COMMON AND EQUIVALENT SHARES
USED IN COMPUTING PER SHARE
AMOUNTS:
BASIC AND DILUTED                    11,562,108    11,042,087    10,688,100
                                    ============  ============  ============


See notes to financial statements.

                                                           38


                                                   BIOTIME, INC.
                                          (A Development Stage Company)

                                    STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)



                            Series A Convertible Preferred
                                       Shares                     Common Shares
                            ---------------------------- ---------------------------------
                              Number of                     Number                                          Deficit Accumulated
                                Shares         Amount     of Shares     Amount        Contributed Capital During Development Stage
                            --------------  ------------ ------------ -------------   ------------------- ------------------------
                                                                                              
BALANCE, November 30, 1990
 (date of inception)              --            --            --           --                 --                     --

NOVEMBER 1990:
 Common shares issued
 for cash                                                   1,312,758    $      263

DECEMBER 1990:
 Common shares issued for
 stock of a separate entity
 at fair value                                              1,050,210       137,400

 Contributed equipment at
 appraised value                                                                            $ 16,425

 Contributed cash                                                                             77,547

MAY 1991:
 Common shares issued for
 cash less offering costs                                     101,175        54,463

 Common shares issued for
 stock of a separate entity
 at fair value                                                100,020        60,000

JULY 1991:
 Common shares issued for
 services performed                                            30,000        18,000

AUGUST-DECEMBER 1991:
 Preferred shares issued for
 cash less offering costs of
 $125,700                          360,000     $ 474,300

MARCH 1992:
 Common shares issued for
 cash less offering costs of
 $1,015,873                                                 2,173,500     4,780,127

 Preferred shares converted
 into common shares               (360,000)     (474,300)     360,000       474,300

 Dividends declared and paid
 on preferred shares                                                                                            $   (24,831)

MARCH  1994:
 Common shares issued for
 cash less offering  costs
 of  $865,826                                                2,805,600    3,927,074

JANUARY-JUNE 1995:
 Common shares repurchased
 with cash                                                   (253,800)     (190,029)

JULY 1995-JUNE 1996:
 Common shares issued
 for cash                                                     608,697    1,229,670

 Common shares repurchased
 with cash                                                    (18,600)      (12,693)

 Common shares warrants
 and options granted
 for services                                                               356,000

NET LOSS                                                                                                         (8,064,471)
                            --------------  ------------ ------------ -------------    ---------------  ---------------------
BALANCE AT JUNE 30, 1996          --           $ --         8,269,560   $10,834,575         $ 93,972            $(8,089,302)

See notes to financial statements.                                                                              (Continued)


                                                             39




                                                            BIOTIME, INC.
                                                    (A Development Stage Company)

                                              STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)


                            Series A Convertible Preferred
(Continued)                            Shares                    Common Shares
                            ---------------------------- ---------------------------------
                              Number of               Number                                              Deficit Accumulated
                                Shares     Amount    of Shares       Amount      Contributed Capital  During Development Stage
                            ------------  --------- -----------  -------------   -------------------  ------------------------
                                                                                             
JULY 1996 - JUNE 1997:

Common shares issued
for cash less offering
costs of $170,597                                       849,327   $ 5,491,583

Common shares issued
for cash (exercise of
options and warrants)                                   490,689     1,194,488

Common shares warrants
and options granted
for service                                                           105,000

JULY 1997 - JUNE 1998:

Common shares issued
for cash (exercise
of options)                                             337,500       887,690

Common shares warrants
and options granted
for service                                                            38,050

Common shares issued
for services                                                500         6,250

JULY 1998 - DECEMBER 1998:

Common shares issued
for cash (exercise of
options and warrants)                                    84,000       395,730

Common shares options
granted for services                                                   50,000

Common shares issued
for services                                              1,500        18,750

NET LOSS                                                                                                        (8,642,034)
                            ------------  --------- ----------- --------------    ------------------- ----------------------
BALANCE AT DECEMBER 31,
1998                              -           -      10,033,076     19,022,116             93,972               (16,731,336)

Common shares issued
for cash (less offering
costs of $128,024)                                      751,654     7,200,602

Common shares issued
for cash and exchange
for 2,491 common shares
which were canceled
(exercise of options)                                    65,509       199,810

Common shares issued
for services                                                792         9,900

Common shares warrant
donated                                                               552,000

Common shares issued
for cash (exercise of
warrant)                                                 40,000        20,000

Options granted for
services                                                              195,952

NET LOSS                                                                                                        (5,479,884)
                            ------------  --------- ----------- -------------    -------------------- ----------------------
BALANCE AT DECEMBER 31,
1999                              -         $  -     10,891,031   $27,200,380            $93,972              $(22,211,220)

See notes to financial statements.                                                                             (Continued)

                                                             40



                                                    BIOTIME, INC.
                                            (A Development Stage Company)

                                    STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)



                           Series A Convertible Preferred
(Continued)                          Shares                    Common Shares
                           ---------------------------  --------------------------------                  Deficit Accumulated
                             Number of                                                    Contributed     During Development
                              Shares         Amount     Number of Shares     Amount         Capital           Stage
                           -------------  ------------  --------------- ---------------- --------------  --------------------
                                                                                             
Common Shares issued for
services                                                         17,661     $    131,525

Exercise of Options                                              51,000           51,000

Exercise of Warrants (less
issuance cost of $36,176)                                       466,912          864,964

Options granted for services                                                     112,138

NET LOSS                                                                                                         (4,925,024)
                           -------------  ------------   -------------- ----------------  -------------   -------------------
BALANCE AT DECEMBER
31, 2000                          -           $   -          11,426,604     $ 28,360,007  $     93,972         $(27,136,244)

Common Shares issued for
services                                                         48,890          324,169

Common Shares issued for
cash and exchanged for 9,295
common shares which were
canceled (exercise of options)                                   74,004           16,488

Common Shares issued for
cash (exercise of warrants)                                      77,818          182,872

Issuance of warrants in
connection with debt financing                                                 1,850,716

Compensation benefit from
revaluation of warrants                                                         (132,249)

NET LOSS                                                                                                         (3,658,825)
                           -------------  ------------   -------------- ----------------  -------------   -------------------
BALANCE AT DECEMBER               -           $   -          11,627,316     $ 30,602,003  $     93,972         $(30,795,069)
31, 2001
                           =============  ============   ============== ================  =============   ===================

See notes to financial statements.                                                                                   (Concluded)


                                                               41


                                                          BIOTIME, INC.
                                                  (A Development Stage Company)

                                                    STATEMENTS OF CASH FLOWS



                                                      Year Ended
                                                     December 31,                        Period from Inception
                                  ---------------------------------------------------    (November 30, 1990) to
                                       2001             2000              1999           December 31 , 2001
                                  --------------- ----------------  -----------------    --------------------
                                                                                    
OPERATING ACTIVITIES:


Net loss                            $ (3,658,825)   $ (4,925,024)     $ (5,479,884)             $(30,770,238)

Adjustments to reconcile net
loss to net cash  used in
operating activities:

  Deferred revenue                                                        (187,500)               (1,000,000)

  Depreciation                            63,767          75,458            59,540                   415,872

  Amortization of debt
  discount                               231,838                                                     231,838

  Cost of donation - warrants                                              552,000                   552,000

  Issuance of common shares,
  options and  warrants in
  exchange for services                  191,920         243,663           220,574                 1,233,484

  Supply reserves                                                                                    200,000

Changes in operating assets
and liabilities:

  Research and development
  supplies on hand                                                                                  (200,000)

  Prepaid expenses and
  other current assets                    13,218         (15,364)           31,260                  (109,431)

  Deposits and other assets               (1,350)                           50,800                   (11,250)

  Accounts payable and
  accrued liabilities                    (50,402)       (235,763)          358,309                   309,347

  Deferred revenue                                                                                 1,000,000
                                  ---------------   -------------   ---------------       -------------------
Net cash used in
  operating activities                (3,209,834)     (4,857,030)       (4,394,901)              (28,148,378)
                                  ---------------   -------------   ---------------       -------------------

INVESTING ACTIVITIES:

  Sale of investments                                                                                197,400

  Purchase of short-term
  investments                                                                                     (9,946,203)

  Redemption of short-term
  investments                                                                                      9,946,203

  Purchase of equipment
  and furniture                           (5,116)        (33,402)         (161,719)                 (567,392)
                                  ---------------   -------------   ---------------       -------------------
Net cash used in
  investing activities                    (5,116)        (33,402)         (161,719)                 (369,992)
                                  ---------------   -------------   ---------------       -------------------

FINANCING ACTIVITIES:

  Proceeds from issuance
  of Warrants and
  Debentures                           2,350,000                                                   2,350,000

  Borrowings under
  line of credit                       1,000,000                                                   1,000,000

  Issuance of preferred
  shares for cash                                                                                    600,000

  Preferred shares
  placement costs                                                                                   (125,700)

  Issuance of common
  shares for cash                                                         7,328,626               23,701,732

  Common shares
  placement costs                                        (36,177)         (128,024)               (2,216,497)

  Net proceeds from exercise
  of common share options
  and warrants                           199,360         952,141           219,810                 5,011,589

  Contributed capital - cash                                                                          77,547

  Dividends paid on
  preferred shares                                                                                   (24,831)

  Repurchase of common shares                                                                       (202,722)
                                  ---------------   -------------   ---------------       -------------------
Net cash provided by
  financing activities                $3,549,360        $915,964        $7,420,412               $30,171,118
                                  ---------------   -------------   ---------------       -------------------

See notes to financial statements.                                                                (Continued)


                                                               42


                                                BIOTIME, INC.
                                        (A Development Stage Company)

                                          STATEMENTS OF CASH FLOWS


                                                      Year Ended
                                                     December 31,                        Period from Inception
                                  ---------------------------------------------------    (November 30, 1990) to
                                       2001             2000              1999              December 31, 2001
                                  --------------- ----------------  -----------------    ----------------------
                                                                                   
INCREASE (DECREASE) IN CASH
AND CASH EQUIVALENTS                      334,410     (3,974,468)         2,863,792                 1,652,748

CASH AND CASH EQUIVALENTS:
At beginning of period                  1,318,338       5,292,806         2,429,014                        --
                                  ---------------   -------------   ---------------       -------------------
At end of period                    $   1,652,748   $   1,318,338     $   5,292,806            $    1,652,748
                                  ===============   =============   ===============       ===================

NONCASH FINANCING AND
INVESTING ACTIVITIES:

  Receipt of contributed
  equipment                                                                                    $       16,425

  Issuance of common shares
  in exchange for shares of
  common stock of Cryomedical
   Sciences, Inc. in a stock-
  for-stock transaction                                                                        $      197,400

  Conversion of line-of-credit
  to debentures                      $  1,000,000       --                --                   $    1,000,000

SUPPLEMENTAL DISCLOSURE OF
CASH FLOW INFORMATION:

  Cash paid for interest             $   --             --                --                      --

  Cash paid for income taxes         $   --             --                --                      --

See notes to financial statements.                                                                                 (Concluded)


                                                              43


                          NOTES TO FINANCIAL STATEMENTS

1. ORGANIZATION

General - BioTime,  Inc.  (the  Company)  was  organized  November 30, 1990 as a
California corporation.  The Company is a biomedical organization,  currently in
the  development  stage,  which is engaged in the  research and  development  of
synthetic  plasma  expanders,  blood  volume  substitute  solutions,  and  organ
preservation  solutions,  for use in  surgery,  trauma  care,  organ  transplant
procedures, and other areas of medicine.

Development Stage Enterprise - Since inception,  the Company has been engaged in
research and  development  activities  in  connection  with the  development  of
synthetic  plasma  expanders,   blood  volume  substitute  solutions  and  organ
preservation  products.  The  Company  has limited  operating  revenues  and has
incurred net losses of  $30,770,238  from  inception  to December 31, 2001.  The
successful   completion  of  the  Company's  product  development  program  and,
ultimately,  achieving  profitable  operations  is dependent  upon future events
including  maintaining  adequate  capital  to  finance  its  future  development
activities,  obtaining  regulatory  approvals  for the  products it develops and
achieving a level of revenues adequate to support the Company's cost structure.

The Company's  operations are subject to a number of factors that can affect its
operating  results and  financial  condition.  Such factors  include but are not
limited to the  following:  the  results  of  clinical  trials of the  Company's
products;   the  Company's  ability  to  obtain  United  States  Food  and  Drug
Administration  and  foreign   regulatory   approval  to  market  its  products;
competition  from  products  manufactured  and sold or being  developed by other
companies;  the price of and demand for Company products;  the Company's ability
to obtain  additional  financing and the terms of any such financing that may be
obtained;  the  Company's  ability to  negotiate  favorable  licensing  or other
manufacturing  and marketing  agreements for its products;  the  availability of
ingredients   used  in  the  Company's   products;   and  the   availability  of
reimbursement  for the cost of the Company's  products  (and related  treatment)
from  government  health  administration  authorities,  private health  coverage
insurers and other organizations.

Certain  Significant Risks and Uncertainties - At December 31, 2001, BioTime had
$ 1,652,748 of cash on hand, and has  implemented  cost savings and  expenditure
limitation  measures.  The Company needs additional capital and greater revenues
to continue its current operations,  to begin clinical trials of PentaLyte,  and
to conduct its planned product  development and research programs.  On March 27,
2002,  the  Company  received a new  $300,000  line of credit  (see Note 9). The
Company has also retained certain investment bankers on a non-exclusive basis to
assist the  Company in raising  capital.  However,  sales of  additional  equity
securities   could  result  in  the   dilution  of  the   interests  of  present
shareholders.  The  Company  is also  continuing  to seek  new  agreements  with
pharmaceutical  companies to provide  product and technology  licensing fees and
royalties.  The  availability  and terms of  equity  financing  and new  license
agreements  are  uncertain.  The  unavailability  or  inadequacy  of  additional
financing or future  revenues to meet  capital  needs could force the Company to
modify, curtail, delay or suspend some or all aspects of its planned operations.
However,  management  believes  its  existing  cash  and  available  credit  are
sufficient to allow the Company to operate through December 31, 2002.

                                       44


2. SIGNIFICANT ACCOUNTING POLICIES

Financial  Statement  Estimates - The  preparation  of financial  statements  in
conformity with generally accepted accounting  principles requires management to
make estimates and  assumptions  that affect the reported  amounts of assets and
liabilities  and disclosure of contingent  assets and liabilities at the date of
the  financial  statements  and the  reported  amounts of revenues  and expenses
during the reporting period. Such management estimates include certain accruals.
Actual results could differ from those estimates.

Revenue recognition - In April 1997, BioTime and Abbott Laboratories  ("Abbott")
entered into an Exclusive  License  Agreement  (the "License  Agreement")  under
which BioTime  granted to Abbott an exclusive  license to  manufacture  and sell
BioTime's  proprietary  blood plasma  volume  expander  solution  Hextend in the
United States and Canada for certain therapeutic uses.

Under the License  Agreement,  Abbott has paid the Company $2,500,000 of license
fees  based  upon  achievement  of  specified  milestones.  Such  fees have been
recognized as revenue as the  milestones  were  achieved.  Up to  $37,500,000 of
additional  license fees will be payable  based upon annual net sales of Hextend
at the rate of 10% of annual net sales if annual net sales exceed $30,000,000 or
5% if  annual  net sales  are  between  $15,000,000  and  $30,000,000.  Abbott's
obligation to pay license fees on sales of Hextend will expire on the earlier of
January 1, 2007 or, on a country by country basis,  when all patents  protecting
Hextend in the  applicable  country  expire or any third party  obtains  certain
regulatory approvals to market a generic equivalent product in that country.

In addition to the license fees, Abbott will pay the Company a royalty on annual
net sales of Hextend.  The royalty rate will be 5% plus an  additional  .22% for
each increment of $1,000,000 of annual net sales,  up to a maximum  royalty rate
of 36%. Abbott's  obligation to pay royalties on sales of Hextend will expire in
the  United  States  or  Canada  when  all  patents  protecting  Hextend  in the
applicable  country  expire  and any  third  party  obtains  certain  regulatory
approvals to market a generic equivalent product in that country.

The Company recognizes such revenues in the quarter in which the sales report is
received,  rather than the quarter in which the sales took place, as the Company
does not have sufficient  sales history to accurately  predict  quarterly sales.
Revenues for the year ended December 31, 2001 include royalties on sales made by
Abbott  during the twelve months ended  September  30, 2001.  Royalties on sales
made  during the fourth  quarter of 2001 will not be  recognized  by the Company
until the first quarter of fiscal year 2002.  Royalties on sales made during the
quarter  ended  December  31,  2001 were not  material  to  BioTime's  financial
results.

Abbott has agreed that the Company may convert Abbott's  exclusive  license to a
non-exclusive  license or may terminate the license  outright if certain minimum
sales and  royalty  payments  are not met.  In order to  terminate  the  license
outright,  BioTime  would pay a  termination  fee in an amount  ranging from the
milestone  payments  made by Abbott to an amount equal to three times prior year
net sales, depending upon when termination occurs.  Management believes that the
probability of payments of any termination fee by the Company is remote.

Cash and cash equivalents - The Company considers all highly liquid  investments
purchased  with  an  original  maturity  of  three  months  or  less  to be cash
equivalents.

Concentration of credit risk - Financial  instruments  that potentially  subject
the Company to significant  concentrations  of credit risk consist  primarily of
cash and cash  equivalents.  The Company limits the amount of credit exposure of
cash  balances by  maintaining  its  accounts in high credit  quality  financial
institutions.

                                       45


Equipment is stated at cost or, in the case of donated equipment, at fair market
value.  Equipment is being  depreciated  using the  straight-line  method over a
period of thirty-six to eighty-four months.

Patent costs  associated with obtaining  patents on products being developed are
expensed as research and development expenses when incurred. These costs totaled
$343,501,  $215,424 and $160,221 for the years ended December 31, 2001, 2000 and
1999, respectively,  and cumulatively,  $1,220,209 for the period from inception
(November 30, 1990) to December 31, 2001.

Research  and   development   costs  are  expensed  when  incurred  and  consist
principally of salaries,  payroll taxes,  research and laboratory fees, hospital
and  consultant  fees related to clinical  trials,  and the Company's  PentaLyte
solution for use in human clinical trials.

Income  Taxes - The  Company  accounts  for  income  taxes  in  accordance  with
Statement of Financial  Accounting  Standards  No. 109,  "Accounting  for Income
Taxes,"  which  prescribes  the use of the asset and  liability  method  whereby
deferred tax asset or liability  account  balances are calculated at the balance
sheet date using current tax laws and rates in effect.  Valuation allowances are
established  when necessary to reduce deferred tax assets when it is more likely
than not that a portion or all of the deferred tax assets will not be realized.

Stock-based  compensation  - The Company grants stock options for a fixed number
of shares to  employees  with an  exercise  price equal to the fair value of the
shares at the date of grant.  The  Company  accounts  for  employee  stock-based
compensation in accordance with Accounting Principles Board Opinion No. 25 ("APB
25"),  "Accounting  for Stock  Issued to  Employees."  The Company  accounts for
stock-based  awards to  nonemployees  in accordance  with Statement of Financial
Accounting   Standards  No.  123  ("SFAS  123"),   "Accounting  for  Stock-Based
Compensation" and Emerging Issues Task Force (EITF) Issue No. 96-18, "Accounting
for Equity Instruments That Are Issued to Other Than Employees for Acquiring, or
in Conjunction with Selling, Goods, or Services."

Stock split - In October 1997, the Company effected a three-for-one split of its
common shares. All share and per share amounts have been restated to reflect the
stock split for all periods presented.

Net Loss per share - Basic net loss per share is computed  by dividing  net loss
available  to  common  stockholders  by  the   weighted-average   common  shares
outstanding   for  the  period.   Diluted  net  loss  per  share   reflects  the
weighted-average common shares outstanding plus the potential effect of dilutive
securities or contracts  which are convertible to common shares such as options,
warrants,  convertible  debt,  and  preferred  stock (using the  treasury  stock
method) and shares issuable in future periods,  except in cases where the effect
would be anti-dilutive.  Diluted loss per share for the years ended December 31,
2001,  2000, and 1999 exclude any effect from such securities as their inclusion
would be antidilutive.

Comprehensive  Loss -  Statement  of  Financial  Accounting  Standards  No. 130,
"Reporting  Comprehensive  Income,"  establishes  standards  for  reporting  and
displaying comprehensive income and its components (revenues,  expenses,  gains,
and losses) in a full set of general-purpose financial statements. Comprehensive
loss was the same as net loss for all periods presented.

                                       46


Fair value of  financial  instruments  - The  carrying  amount of the  Company's
long-term debt (debentures) approximates its fair value.

Segment  information - The Company  operates in the single  segment of producing
aqueous based synthetic solutions used in medical  applications and is currently
in the development stage of this segment.

Recently issued accounting standards

Derivative  instruments and hedging activities - On January 1, 2001, the Company
adopted  Statement  of  Financial  Accounting  Standards  No. 133 ("SFAS  133"),
"Accounting  for Derivative  Instruments and Hedging  Activities."  SFAS 133, as
amended, requires that every derivative instrument, including certain derivative
instruments embedded in other contracts, be recorded on the balance sheet at its
fair value. Changes in the fair value of derivatives are recorded each period in
current  earnings  or  other  comprehensive  income,   depending  on  whether  a
derivative is designated as part of a hedge  transaction and, if it is, the type
of hedge transaction.  SFAS 133, as amended,  requires that the Company formally
document,  designate,  and assess the effectiveness of transactions that receive
hedge accounting.  The Company adopted SFAS 133, as amended,  on January 1, 2001
and did not elect hedge  accounting as defined by SFAS 133. The adoption of this
statement did not have a material impact on the Company's  financial position or
results of operations.

Business  combinations  and goodwill - In June 2001,  the  Financial  Accounting
Standards Board issued Statement of Financial Accounting Standards No. 141 (SFAS
141"),  "Business  Combinations" and Statement of Financial Accounting Standards
No. 142 ("SFAS 142"),  "Goodwill and Other Intangible Assets." SFAS 141 requires
that all business  combinations  initiated  after June 30, 2001 be accounted for
under the purchase method and addresses the initial  recognition and measurement
of goodwill and other intangible assets acquired in a business combination. SFAS
141 addresses  the initial  recognition  and  measurement  of intangible  assets
acquired  outside of a business  combination and the accounting for goodwill and
other intangible assets subsequent to their acquisition.  SFAS 142 provides that
intangible  assets with finite  useful lives be amortized  and that goodwill and
intangible  assets with indefinite lives will not be amortized,  but will rather
be tested at least annually for impairment.  The Company will adopt SFAS 141 and
142 on January 1, 2002.  The adoption of this statement will not have a material
impact on the financial statements.

Impairment  and disposal of long lived assets - In October  2001,  the Financial
Accounting  Standards Board issued Statement of Financial  Accounting  Standards
No. 144 ("SFAS 144"),  "Accounting  for the Impairment or Disposal of Long-Lived
Assets."  SFAS 144  supersedes  SFAS  121,  "Accounting  for the  Impairment  of
Long-Lived  Assets  and  for  Long-Lived  Assets  to be  Disposed  Of,"  and the
accounting and reporting  provisions of Accounting  Principles Board Opinion No.
30,  "Reporting  the Results of Operations - - Reporting the Effects of Disposal
of  a  Segment  of a  Business,  and  Extraordinary,  Unusual  and  Infrequently
Occurring  Events and  Transactions,  " and addresses  financial  accounting and
reporting for the impairment of disposal of long-lived  assets. The Company will
adopt SFAS 144 on January 1, 2002.  The adoption of this statement will not have
a material impact on the financial statements.

                                       47


3. LINE OF CREDIT AND DEBENTURES

During March,  2001,  BioTime  entered into a one year  Revolving Line of Credit
Agreement  (the "Credit  Agreement")  with Alfred D.  Kingsley,  an investor and
consultant to the Company, under which BioTime could borrow up to $1,000,000 for
working capital  purposes at an interest rate of 10% per annum. In consideration
for making the line of credit  available,  the company issued to Mr.  Kingsley a
fully vested  warrant to purchase  50,000 common shares at an exercise  price of
$8.31.  The fair value of this  warrant of  $254,595  was  determined  using the
Black-Scholes pricing model with the following assumptions:  contractual life of
5  years;  risk-free  interest  rate of  5.50%;  volatility  of  87.55%;  and no
dividends  during the  expected  term.  The fair value amount of the warrant was
recorded as deferred financing costs and was being amortized to interest expense
over the term of the Credit Agreement.

In August 2001,  the company  issued  $3,350,000  of  debentures  to an investor
group.  As part of the $3,350,000  debenture  issuance,  Mr.  Kingsley agreed to
convert the $1,000,000 current outstanding balance under the Credit Agreement to
$1,000,000 of debentures and purchased an additional  $500,000 of debentures for
cash. On the date of the conversion of the Credit  Agreement to the  debentures,
the Credit Agreement was terminated,  and no additional borrowings are available
under the Credit  Agreement.  Interest on the debentures is payable at an annual
rate of 10% and is payable semi-annually. The principal amount of the debentures
is due on August 1, 2004.  BioTime  may prepay  the  debentures,  in whole or in
part, at any time without premium or penalty. Under the terms of the debentures,
BioTime  has  agreed  that  commencing  October 1, 2001,  it will  restrict  its
quarterly  cash  payments  for  operating  expenses  to not more  than  $450,000
(excluding  interest  payable on the debentures) plus the amount of cash revenue
(excluding interest and dividends) it collects for the quarter. This restriction
will expire when the Company  obtains at least  $5,000,000 in cash through sales
of equity securities or pays off the debenture indebtedness in full. The Company
has also agreed not to pay any cash  dividends on or to redeem or repurchase any
of its common shares outstanding until it has paid off the debentures in full.

Investors  who  purchased the  debentures  also received  warrants to purchase a
total of 515,385  common  shares at an  exercise  price of $6.50.  The  warrants
expire on August 1, 2004. The total fair value of the warrants of $1,596,124 was
determined  using the  Black-Scholes  option  pricing  model with the  following
assumptions:  contractual  life of 3 years;  risk-free  interest  rate of 4.04%;
volatility of 88%; and no dividends  during the expected term. Of the $3,350,000
of  proceeds  $1,596,124  was  allocated  to the  warrants  which  includes  the
unamortized  portion  ($159,122)  of the fair  value of the  warrant  issued  in
connection with the Credit Agreement.  The portion of the proceeds  allocated to
the  debentures  is being  accreted  to  interest  expense  over the term of the
debentures using the effective  interest rate method.  The Company has the right
to call the warrants for redemption at a redemption  price of $0.01 per share if
the closing price of the  Company's  common shares equals or exceeds 150% of the
exercise price for fifteen consecutive trading days.

4. SHAREHOLDERS' EQUITY (DEFICIT)

During June 1994, the Board of Directors authorized  management to repurchase up
to  200,000  of the  Company's  common  shares  at  market  price at the time of
purchase.  A total of 90,800 shares have been repurchased and retired. No shares
have been repurchased since August 28, 1995.

During  September  1995,  the Company  entered into an agreement  for  financial
advisory  services with Greenbelt  Corp., a corporation  controlled by Alfred D.
Kingsley and Gary K. Duberstein, who are also shareholders of the Company. Under
this agreement the Company issued to the financial advisor warrants

                                       48


to purchase 311,276 Common Shares at a price of $1.93 per share, and the Company
agreed to issue  additional  warrants to purchase  up to an  additional  622,549
Common Shares at a price equal to the greater of (a) 150% of the average  market
price of the Common  Shares during the three months prior to issuance and (b) $2
per share. The additional  warrants were issued in equal quarterly  installments
over a two year period, beginning October 15, 1995.

Greenbelt  has  purchased  544,730  Common  Shares by  exercising  some of those
warrants at prices ranging from $1.93 to $2.35 per share. Greenbelt continues to
hold warrants,  expiring during April and June 2002, to purchase an aggregate of
155,636  Common  Shares at prices  ranging  from  $13.75  to  $15.74.  The other
warrants  have expired  unexercised.  The number of shares and  exercise  prices
shown have been adjusted for the  Company's  subscription  rights  distributions
during January 1997 and February 1999 and the payment of a stock dividend during
October 1997.

During  September 1996, the Company entered into an agreement with an individual
to act as an advisor to the Company. In exchange for services, as defined, to be
rendered by the advisor  through  September  1999, the Company issued  warrants,
with five year terms, to purchase  124,510 common shares at a price of $6.02 per
share. The exercise price and number of common shares for which the warrants may
be exercised  are subject to  adjustment  to prevent  dilution in the event of a
stock split,  combination,  stock dividend,  reclassification of shares, sale of
assets, merger or similar transaction.  Warrants for 77,775 common shares vested
and became exercisable and transferable when issued;  warrants for the remaining
46,735  common  shares  vested  ratably   through   September  1997  and  became
exercisable  and  transferable as vesting  occurred.  The estimated value of the
services to be performed is $60,000 and that amount has been  amortized over the
three year term of the agreement.

On  February 5, 1997,  the Company  completed  a  subscription  rights  offering
raising $5,662,180, through the sale of 849,327 common shares.

During  April 1998,  the Company  entered  into a  financial  advisory  services
agreement with Greenbelt Corp. The agreement  provided for an initial payment of
$90,000  followed  by an  advisory  fee of  $15,000  per  month  that  was  paid
quarterly.  On August 11, 2000, the Board of Directors  approved the renewal and
amendment of this agreement for a period of twelve months ending March 31, 2001.
Under the amended  agreement,  Greenbelt Corp.  received 30,000 common shares in
four  quarterly  installments  of 7,500  shares each.  On January 16, 2002,  the
agreement  was renewed and amended to provide for the issuance of 40,000  common
shares  payable in quarterly  installments  of 10,000  ending on March 31, 2002.
Under the agreement,  upon the request of Greenbelt Corp., the Company will file
a  registration  statement to register  the shares for public sale.  The Company
recognized  $299,175  and  $105,000  of stock  compensation  expense  (general &
administrative) during the years ended December 31, 2001 and 2000, respectively,
under the agreement.

On March 9, 1999, the Company  completed a subscription  rights offering raising
$7,328,626, through the sale of 751,654 common shares.

On July 15, 1999, the Company  established the "BioTime  Endowment for the Study
of Aging and Low- Temperature  Medicine" (the  "Endowment") at the University of
California at Berkeley.  The endowment  will support the research  activities of
faculty and researchers in the areas of aging and low temperature medicine.  The
initial term of the Endowment shall be for ten years,  and upon review,  renewed
every five years

                                       49


thereafter.  The Company funded the Endowment with $65,000 in cash and a warrant
to the  University to purchase  40,000 of the Company's  common shares for $0.50
per share.  On September  23, 1999,  the  University  of  California at Berkeley
exercised  its  warrant  for  40,000  shares.  The fair  value  of the  warrant,
estimated  to  be  approximately   $552,000,  was  recognized  in  research  and
development expenses during the year ended December 31, 1999.

5. STOCK OPTION PLAN

The Board of  Directors  of the Company  adopted the 1992 Stock Option Plan (the
"Plan") during  September 1992. The Plan was approved by the shareholders at the
1992 Annual  Meeting of  Shareholders  on December 1, 1992.  Under the Plan,  as
amended,  the Company has reserved  1,800,000  common shares for issuance  under
options  granted to eligible  persons.  No options may be granted under the Plan
more  than ten  years  after  the date the  Plan  was  adopted  by the  Board of
Directors,  and no options  granted  under the Plan may be  exercised  after the
expiration  of ten years  from the date of grant.  Under  the Plan,  options  to
purchase  common  shares may be  granted to  employees,  directors  and  certain
consultants  at prices not less than the fair market  value at date of grant for
incentive  stock  options and not less than 85% of fair  market  value for other
stock options. These options expire five to ten years from the date of grant and
may be fully  exercisable  immediately,  or may be  exercisable  according  to a
schedule  or  conditions  specified  by the  Board of  Directors  or the  Option
Committee.  During the years ended December 31, 2001,  2000 and 1999,  employees
and directors were granted options to purchase 80,000,  48,000 and 33,000 common
shares, respectively, and non-employees were granted options to purchase 50,000,
1,500 and 63,000 shares, respectively. At December 31, 2001, 439,000 shares were
available for future grants under the Option Plan.

Options to purchase  60,000 common shares,  granted to consultants in 1999, vest
upon achievement of certain  milestones.  At December 31, 2001, 5000 options had
vested and 55,000 had not vested.  The Company is  amortizing  into research and
development  expense  the  estimated  fair  value of such  options,  subject  to
remeasurement at the end of each reporting period,  over the period estimated to
achieve such milestones (one to two years).  During 2001 the Company  recorded a
benefit  of  $132,249  as a result of the  remeasurement  of such  options.  The
Company recorded $203,229 and $171,027 as compensation  expense related to these
options  during the years ended  December 31, 2000 and 1999,  respectively.  The
Company has $112,166 in unamortized  compensation  expense at December 31, 2001.
The Company's estimate of compensation cost at December 31, 2001 is based on the
Black-Scholes option pricing model with the following  assumptions:  contractual
life of 7 years;  risk-free  interest  rate of 5.09%;  volatility of 73%; and no
dividends during the expected term.

Option activity under the Plan is as follows:


                                                                                               Weighted
                                                                Number of                  Average Exercise
                                                                  Shares                         Price
                                                          ----------------------        -----------------------
                                                                                          
Outstanding, December 31, 1998 (440,500
exercisable at a weighted average price of $5.76)                470,500                        $ 5.46

Granted (weighted average fair value of $9.52 per
share)                                                            96,000                         11.81


                                       50




                                                                                                        Weighted
                                                                         Number of                  Average Exercise
                                                                           Shares                         Price
                                                                   ----------------------
                                                                                                   
Exercised                                                                 (68,000)                       12.65
Canceled                                                                     --                            --
                                                                   ----------------------
Outstanding, December 31, 1999 (438,500
exercisable at a weighted average price of $6.33)                         498,500                         6.98
Granted (weighted average fair value of $7.03 per
share)                                                                     52,500                         9.95
Exercised                                                                 (51,000)                        1.00
Canceled                                                                  (30,000)                        1.00
                                                                   ----------------------
Outstanding, December 31, 2000                                            470,000                         8.34

Granted (weighted average fair value of $3.81 per
share)                                                                    150,000                         6.30
Exercised                                                                 (60,799)                        1.21
Canceled                                                                  (73,500)                        7.15
                                                                   ----------------------
Outstanding, December 31, 2001                                            485,701                         8.78
                                                                   ======================


Additional  information regarding options outstanding as of December 31, 2001 is
as follows:


                                          Options Outstanding                                           Options Exercisable
                                       -------------------------                           ----------------------------------------
                                            Weighted Avg.
                                              Remaining
      Range of            Number           Contractual Life        Weighted Avg.              Number              Weighted Avg.
  Exercise Prices       Outstanding             (yrs)              Exercise Price           Exercisable           Exercise Price
--------------------   ---------------   --------------------   --------------------      ---------------       ------------------
                                                                                                        
       $1.13               38,701                 2.42                  $1.13                  38,701                  $1.13
     4.92-8.81            153,500                 4.56                   6.15                 153,500                   6.15
     9.00-13.00           274,500                 2.88                  10.68                 219,500                  10.61
       18.25               19,000                 0.90                  18.25                  19,000                  18.25
                       ---------------                                                    ---------------
    $1.0-$18.25           485,701                 3.30                  $8.78                 430,701                  $8.40
                       ===============                                                    ===============


                                                          51


Had compensation cost for employee options granted in 2001, 2000, and 1999 under
the Company's  Option Plan been determined  based on the fair value at the grant
dates,  as  prescribed in Statement of Financial  Accounting  Standards No. 123,
"Accounting for Stock-Based  Compensation," the Company's net loss and pro forma
net loss per share would have been as follows:


                                                                         Year Ended December 31,
                                                                         -----------------------
                                                  2001                            2000                            1999
                                                  ----                            ----                            ----
                                                                                                      
Net Loss:

     As reported                               $3,658,825                      $4,925,024                      $5,479,884

     Pro forma                                 $3,971,595                      $5,103,989                      $5,706,878

Basic and diluted net loss:

     As reported                                  $0.32                           $0.44                           $0.51

     Pro forma                                    $0.34                           $0.46                           $0.54


The fair value of each option grant is estimated using the Black-Scholes  option
pricing model with the following assumptions during the applicable period:


                                                              2001                        2000                       1999
                                                              ----                        ----                       ----
                                                                                                          
Average risk-free rate of return                             4%-5%                       6.72%                      5.99%
Weighted average expected option life                       5 years                     5 years                    5 years
Volatility rate                                             45%-60%                      87.4%                      84.7%
Dividend yield                                                 0%                          0%                         0%


6. COMMITMENTS AND CONTINGENCIES

The  Company  has an  employment  agreement  with  one  officer  who  is  also a
shareholder,  for a five-year term,  which expires in April 2002. This agreement
provides for a base salary with annual  increases.  The agreement  also provides
that  in  the  event  the  officer's  employment   terminates,   voluntarily  or
involuntarily,  after a change in control of the Company  through an acquisition
of voting stock or assets, or a merger or consolidation with another corporation
or entity,  the  officer  will be entitled to  severance  payments  equal to the
greater of (a) 2.99 times the average annual compensation for the preceding five
years or (b) the  balance of the base  salary for the  unexpired  portion of the
term  of the  employment  agreement.  This  officer/shareholder  has  signed  an
intellectual property agreement with the Company as a condition of employment.

The Company occupies its office and laboratory facility in Berkeley,  California
under a lease that will expire on March 31, 2004. The Company presently occupies
approximately 8,890 square feet of space with a

                                       52


monthly rent of $11,024.  The rent  increases  annually by the greater of 3% and
the  increase in the local  consumer  price index,  subject to a maximum  annual
increase  of 7%. Due to an increase  in the local  consumer  price index of only
1.8% over the period defined in the lease agreement, rent will only be increased
by the minimum  amount of 3% (yielding a new rent,  payable  beginning  with the
month of April, 2002, of $11,355).  Rent expense totaled $122,096,  $113,600 and
$91,796 for the years ended December 31, 2001, 2000 and 1999, respectively.

7. INCOME TAXES

The primary components of the net deferred tax asset are:

                                        Year Ended           Year Ended
                                       December 31,         December 31,
                                          2001                 2000
                                    -----------------    ----------------
Deferred Tax Asset:
Net operating loss carryforwards    $      14,056,615    $     11,938,185
Research & Development Credits              1,224,065             873,269
Other, net                                     81,466            (100,841)
                                    -----------------    ----------------
                   Total                   15,362,146          12,710,613
Valuation allowance                       (15,362,146)        (12,710,613)
                                    -----------------    ----------------
Net deferred tax asset              $            -0-     $           -0-
                                    =================    ================

No tax benefit has been  recorded  through  December 31, 2001 because of the net
operating losses incurred and a full valuation allowance  provided.  A valuation
allowance  is provided  when it is more likely than not that some portion of the
deferred  tax  asset  will  not be  realized.  The  Company  established  a 100%
valuation  allowance  for  all  periods  presented  due  to the  uncertainty  of
realizing  future tax benefits from its net  operating  loss  carryforwards  and
other deferred tax assets.

As of December 31, 2001,  the Company has net operating  loss  carryforwards  of
approximately  $37,200,000  for federal and  $18,000,000 for state tax purposes,
which  begin to expire  during  fiscal  years  2005 and 2001,  respectively.  In
addition,  the  Company has tax credit  carryforwards  for federal and state tax
purposes of $778,682 and $445,383,  respectively,  which will begin to expire in
2005.

Internal  Revenue  Code  Section  382  places a  limitation  (the  "Section  382
Limitation")  on the  amount  of  taxable  income  which  can be  offset  by net
operating  loss  ("NOL")  carryforwards  after a change  in  control  (generally
greater than 50% change in  ownership)  of a loss  corporation.  California  has
similar rules.  Generally,  after a control change,  a loss  corporation  cannot
deduct NOL  carryforwards in excess of the Section 382 Limitation.  Due to these
"change in ownership" provisions, utilization of the NOL and tax credit

                                       53


carryforwards may be subject to an annual limitation regarding their utilization
against taxable income in future periods.

8. RELATED PARTY TRANSACTIONS

During the years ended December 31, 2000 and 1999, fees for consulting  services
of  $5,500  and  $19,125,  respectively,  were  paid to a member of the Board of
Directors. No consulting fees were paid to any members of the Board of Directors
during the year ended December 31, 2001.

9. SUBSEQUENT EVENTS

On March 27, 2002, BioTime entered into a new Revolving Line of Credit Agreement
(the "Credit  Agreement") with Alfred D. Kingsley under which BioTime may borrow
up to $300,000 for working capital  purposes.  Amounts borrowed under the Credit
Agreement  will be due on  March  31,  2003 or when  BioTime  receives  at least
$600,000 through the sale of capital stock, loans from other lenders, fees under
licensing agreements  (excluding royalty payments),  or any combination of those
sources.  Interest on borrowings  shall accrue at a rate of 10% per annum and is
payable with principal on the maturity date. Mandatory  prepayments of principal
will be due to the extent that the Company  receives  funds from any one or more
of those sources in excess of $300,000 but less than $600,000.

In connection  with entering  into the Credit  Agreement on March 27, 2002,  the
Company  granted  Alfred D. Kingsley a warrant to purchase  30,000 shares of the
Company's  common stock at $4.00 per share.  The warrants are fully  exercisable
and non-forfeitable on the date of grant and expire on March 26, 2007.

10. QUARTERLY RESULTS (UNAUDITED)

Summarized  unaudited  results of operations for each quarter of the years ended
December 31, 2001 and 2000 are as follows:


                              First Quarter      Second Quarter       Third Quarter      Fourth Quarter     Total Year
                            ------------------ ------------------- -------------------  ---------------- -----------------
Fiscal Year Ended
December 31, 2001
---------------------------
                                                                                             
Revenue                          $32,695             $29,958             $36,416            $52,848          $151,917
Net Loss                         $951,739          $1,120,024           $861,273            $725,789        $3,658,825
Net Loss per share                 $.08               $.10                $.07                $.06             $.32


                                                           54




                              First Quarter      Second Quarter       Third Quarter      Fourth Quarter     Total Year
                            ------------------ ------------------- -------------------  ---------------- -----------------
Fiscal Year Ended
December 31, 2000
---------------------------
                                                                                             
Revenue                           $5,732             $7,387              $19,592            $19,781           $52,492
Net Loss                        $1,319,947         $1,329,761          $1,224,955          $1,050,361       $4,925,024
Net Loss per share                 $.12               $.12                $.11                $.10             $.44


                                                           55

Exhibit
Numbers           Description
-------           -----------

 3.1     Articles of Incorporation, as Amended.@

 3.3     By-Laws, As Amended.#

 4.1     Specimen of Common Share Certificate.+

10.1     Lease  Agreement  dated July 1, 1994 between the  Registrant and Robert
         and Norah  Brower,  relating  to  principal  executive  offices  of the
         Registrant.*

10.2     Intellectual Property Agreement between the Company and Paul Segall.+

10.3     Intellectual Property Agreement between the Company and Hal Sternberg.+

10.4     Intellectual Property Agreement between the Company and Harold Waitz.+

10.5     Intellectual Property Agreement between the Company and Judith Segall.+

10.6     Intellectual   Property   Agreement  between  the  Company  and  Steven
         Seinberg.**

10.7     Agreement  between  CMSI  and  BioTime  Officers  Releasing  Employment
         Agreements, Selling Shares, and Transferring Non-Exclusive License.+

10.8     Agreement  for Trans  Time,  Inc. to  Exchange  CMSI  Common  Stock for
         BioTime, Inc. Common Shares.+

10.9     1992 Stock Option Plan, as amended.##

10.10    Intellectual  Property  Agreement  between  the  Company  and Ronald S.
         Barkin.^

10.11    Addenda to Lease Agreement between the Company and Donn Logan.++

10.12    Exclusive License  Agreement  between Abbott  Laboratories and BioTime,
         Inc.  (Portions of this exhibit have been omitted pursuant to a request
         for confidential treatment).###

10.13    Modification of Exclusive License Agreement between Abbott Laboratories
         and BioTime,  Inc. (Portions of this exhibit have been omitted pursuant
         to a request for confidential treatment).^^^

10.14    Revolving  Line of Credit  Agreement,  dated  March 27,  2001,  between
         BioTime, Inc. and Alfred D. Kingsley+++

10.15    Warrant  Agreement,  dated March 27, 2001,  between  BioTime,  Inc. and
         Alfred D.Kingsley+++

10.16    Form of Series 2001-A 10% Debenture due August 1, 2004++++

10.17    Warrant Agreement between BioTime, Inc. and Purchasers of Series 2001-A
         Debentures++++

10.18    Revolving  Line of Credit  Agreement,  dated  March 27,  2002,  between
         BioTime, Inc. and Alfred D. Kingsley####

                                       65


10.19    Warrant  Agreement,  dated March 27, 2002,  between  BioTime,  Inc. and
         Alfred D. Kingsley####

23.1     Consent of Deloitte & Touche LLP***

@    Incorporated  by reference to the  Company's  Form 10-K for the fiscal year
     ended June 30, 1998.

+    Incorporated  by reference  to  Registration  Statement  on Form S-1,  File
     Number  33-44549  filed with the  Securities  and  Exchange  Commission  on
     December 18, 1991,  and  Amendment  No. 1 and Amendment No. 2 thereto filed
     with the Securities  and Exchange  Commission on February 6, 1992 and March
     7, 1992, respectively.

#    Incorporated  by reference  to  Registration  Statement  on Form S-1,  File
     Number 33-48717 and Post- Effective  Amendment No. 1 thereto filed with the
     Securities  and Exchange  Commission on June 22, 1992, and August 27, 1992,
     respectively.

*    Incorporated  by reference to the  Company's  Form 10-K for the fiscal year
     ended June 30, 1994.

^    Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     March 31, 1997.

##   Incorporated  by reference  to  Registration  Statement  on Form S-8,  File
     Number 333-30603 filed with the Securities and Exchange  Commission on July
     2, 1997.

^^   Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     March 31, 1999.

###  Incorporated by reference to the Company's Form 8-K, filed April 24, 1997.

^^^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     June 30, 1999.

++   Incorporated  by  reference to the  Company's  Form 10-K for the year ended
     December 31, 1999.

+++  Incorporated  by  reference to the  Company's  Form 10-K for the year ended
     December 31, 2000.

++++ Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     June 30, 2001.

***  Filed herewith.
#### Previously filed.

(b) Reports on Form 8-K

The  Company  did not file any  reports of Form 8-K for the three  months  ended
December 31, 2001.

                                       66


                                   SIGNATURES

     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report on Form 10-K to
be signed on its behalf by the  undersigned,  thereunto  duly  authorized on the
14th day of May 2002.

                                               BIOTIME, INC.


                                               By: /s/Paul E. Segall
                                                  -----------------------------
                                                   Paul E. Segall, Ph.D.
                                                   Chairman and Chief Executive
                                                   Officer (Principal executive
                                                   officer)



         Signature                          Title                                       Date
         ---------                          -----                                       ----
                                                                                  
/s/Paul E. Segall
-----------------------------
Paul E. Segall, Ph.D.               Chairman, Chief Executive Officer and               May 14, 2002
                                    Director (Principal Executive Officer)



-----------------------------
Ronald S. Barkin                    President and Director                              May 14, 2002


/s/Harold D. Waitz
-----------------------------
Harold D. Waitz, Ph.D.              Vice President and Director                         May 14, 2002


/s/Hal Sternberg
-----------------------------
Hal Sternberg, Ph.D.                Vice President and Director                         May 14, 2002


/s/Steven Seinberg
-----------------------------
Steven Seinberg                     Chief Financial Officer                             May 14, 2002
                                    (Principal Financial and
                                    Accounting Officer)

/s/Judith Segall
-----------------------------
Judith Segall                       Vice President, Corporate Secretary                 May 14, 2002
                                    and Director


/s/Jeffrey B. Nickel
-----------------------------
Jeffrey B. Nickel                   Director                                            May 14, 2002


-----------------------------
Milton H. Dresner                   Director                                            May 14, 2002


-----------------------------
Katherine Gordon                    Director                                            May 14, 2002



                                                     67


Exhibit Index

Exhibit
Numbers           Description
-------           -----------

 3.1     Articles of Incorporation, as Amended.@

 3.3     By-Laws, As Amended.#

 4.1     Specimen of Common Share Certificate.+

10.1     Lease  Agreement  dated July 1, 1994 between the  Registrant and Robert
         and Norah  Brower,  relating  to  principal  executive  offices  of the
         Registrant.*

10.2     Intellectual Property Agreement between the Company and Paul Segall.+

10.3     Intellectual Property Agreement between the Company and Hal Sternberg.+

10.4     Intellectual Property Agreement between the Company and Harold Waitz.+

10.5     Intellectual Property Agreement between the Company and Judith Segall.+

10.6     Intellectual   Property   Agreement  between  the  Company  and  Steven
         Seinberg.**

10.7     Agreement  between  CMSI  and  BioTime  Officers  Releasing  Employment
         Agreements, Selling Shares, and Transferring Non-Exclusive License.+

10.8     Agreement  for Trans  Time,  Inc. to  Exchange  CMSI  Common  Stock for
         BioTime, Inc. Common Shares.+

10.9     1992 Stock Option Plan, as amended.##

10.10    Intellectual  Property  Agreement  between  the  Company  and Ronald S.
         Barkin.^

10.11    Addenda to Lease Agreement between the Company and Donn Logan.++

10.12    Exclusive License  Agreement  between Abbott  Laboratories and BioTime,
         Inc.  (Portions of this exhibit have been omitted pursuant to a request
         for confidential treatment).###

10.13    Modification of Exclusive License Agreement between Abbott Laboratories
         and BioTime,  Inc. (Portions of this exhibit have been omitted pursuant
         to a request for confidential treatment).^^^

10.14    Revolving  Line of  Credit  Agreement  dated  March 27,  2001,  between
         BioTime, Inc. and Alfred D. Kingsley+++

10.15    Warrant  Agreement  dated March 27,  2001,  between  BioTime,  Inc. and
         Alfred D. Kingsley+++

10.16    Form of Series 2001-A 10% Debenture due August 1, 2004++++

10.17    Warrant Agreement between BioTime, Inc. and Purchasers of Series 2001-A
         Debentures++++

10.18    Revolving  Line of  Credit  Agreement  dated  March 27,  2002,  between
         BioTime, Inc. and Alfred D. Kingsley####

10.19    Warrant  Agreement  dated March 27,  2002,  between  BioTime,  Inc. and
         Alfred D. Kingsley####

23.1     Consent of Deloitte & Touche LLP***

                                       68


@    Incorporated  by reference to the  Company's  Form 10-K for the fiscal year
     ended June 30, 1998.

+    Incorporated  by reference  to  Registration  Statement  on Form S-1,  File
     Number  33-44549  filed with the  Securities  and  Exchange  Commission  on
     December 18, 1991,  and  Amendment  No. 1 and Amendment No. 2 thereto filed
     with the Securities  and Exchange  Commission on February 6, 1992 and March
     7, 1992, respectively.

#    Incorporated  by reference  to  Registration  Statement  on Form S-1,  File
     Number 33-48717 and Post- Effective  Amendment No. 1 thereto filed with the
     Securities  and Exchange  Commission on June 22, 1992, and August 27, 1992,
     respectively.

*    Incorporated  by reference to the  Company's  Form 10-K for the fiscal year
     ended June 30, 1994.

^    Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     March 31, 1997.

##   Incorporated  by reference  to  Registration  Statement  on Form S-8,  File
     Number 333-30603 filed with the Securities and Exchange  Commission on July
     2, 1997.

^^   Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     March 31, 1999.

###  Incorporated by reference to the Company's Form 8-K, filed April 24, 1997.

^^^  Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     June 30, 1999.

++   Incorporated  by  reference to the  Company's  Form 10-K for the year ended
     December 31, 1999.

+++  Incorporated  by  reference to the  Company's  Form 10-K for the year ended
     December 31, 2000.

++++ Incorporated  by reference to the Company's Form 10-Q for the quarter ended
     June 30, 2001.

***  Filed herewith.
#### Previously filed.
                                       69