STOCK OPTION AGREEMENT

         THIS STOCK OPTION AGREEMENT is entered into as of April 29, 2004 by and
between CORD BLOOD AMERICA, Inc., a Florida corporation (the "Company"), and
STEPHEN WEIR, an individual (the "Director").


                                    RECITALS:


         A. The Company desires to grant to the Director certain options to
purchase shares of the Company's common stock, par value $.0001 per share (the
"Common Stock").

         B. Each of the Company and the Director desires to enter into this
Stock Option Agreement (the "Agreement") for the purpose of evidencing the grant
of such options and setting forth certain of the terms and conditions governing
the exercise thereof.


         NOW, THEREFORE, in consideration of the premises, and the respective
covenants and agreements of the parties set forth herein, each of the Company
and the Director agrees as follows:


                                    ARTICLE I

                               CERTAIN DEFINITIONS
                               -------------------

         The following terms shall have the following respective meanings when
utilized in this Agreement:

         "Approved Board" means a Board of Directors of the Company that, as of
a given date, is comprised of individuals at least a majority of whom have
continuously served as directors of the Company during the period of two years
ending on such date, unless the election of each director who was not a director
at the beginning of such two year period was approved in advance by the
directors representing at least two-thirds of the directors then in office who
were directors at the beginning of such two year period.

         "Approved Change in Control of the Company" means any transaction or
series of transactions which:

                  (a) results, or is reasonably anticipated to result, in a
         Change in Control of the Company;

<PAGE>

                  (b) is approved by the requisite vote of an Approved Board
         pursuant to, and in accordance with, applicable law and the Articles of
         Incorporation and Bylaws of the Company; and

                  (c) if required by applicable law or the Articles of
         Incorporation or Bylaws of the Company, is approved by the requisite
         vote of the shareholders of the Company pursuant to, and in accordance
         with, applicable law and the Articles of Incorporation and Bylaws of
         the Company.

         "Change in Control of the Company" means any change in control of the
Company of a nature which would be required to be reported (a) in response to
Item 6(e) of Schedule 14A of Regulation 14A, as in effect on the date of this
Agreement, promulgated under the Securities Exchange Act of 1934, as amended
(the "Exchange Act"), (b) in response to Item 1 of the Current Report on Form
8-K, as in effect on the date of this Agreement, promulgated under the Exchange
Act, or (c) in any filing by the Company with the United States Securities and
Exchange Commission; provided, however, that, without limitation, a Change in
Control of the Company shall be deemed to have occurred if:

                           (i) subsequent to the date of this Agreement, any
                  "person" (as such term is defined in Sections 13(d)(3) and
                  14(d)(2) of the Exchange Act), other than the Company, any
                  subsidiary of the Company or any compensation, retirement,
                  pension or other employee benefit plan or trust of the Company
                  or any subsidiary of the Company, becomes the "beneficial
                  owner" (as such term is defined in Rule 13d-3 promulgated
                  under the Exchange Act), directly or indirectly, of securities
                  of the Company or any successor to the Company (whether by
                  merger, consolidation or otherwise) representing twenty
                  percent (20%) or more of the combined voting power of the
                  Company's then outstanding securities;

                           (ii) during any period of two consecutive years, the
                  individuals who at the beginning of such period constitute the
                  Board of Directors of the Company cease for any reason to
                  constitute at least a majority of such Board of Directors,
                  unless the election of each director who was not a director at
                  the beginning of such period has been approved in advance by
                  the directors representing at least two-thirds of the
                  directors then in office who were directors at the beginning
                  of such period;

                           (iii) the Company shall merge or consolidate with or
                  into another corporation or other entity, or enter into a
                  binding agreement to merge or consolidate with or into another
                  corporation or other entity, other than a merger or
                  consolidation which would result in the voting securities of
                  the Company outstanding immediately prior thereto continuing
                  to represent (either by remaining outstanding or by being
                  converted into voting securities of the surviving corporation
                  or entity) not less than eighty percent (80%) of the combined
                  voting power of the voting securities of the Company or such
                  surviving corporation or entity outstanding immediately after
                  such merger or consolidation;


                                       2
<PAGE>

                           (iv) the Company shall sell, lease, exchange or
                  otherwise dispose of all or substantially all of its assets,
                  or enter into a binding agreement for the sale, lease,
                  exchange or other disposition of all or substantially all of
                  its assets, in one transaction or in a series of related
                  transactions; or

                           (v) the Company shall liquidate or dissolve, or any
                  plan or proposal shall be adopted for the liquidation or
                  dissolution of the Company.

         "Person" means any individual, person, firm, corporation, partnership,
association or other entity.


                                   ARTICLE II

                                  STOCK OPTIONS

         2.1 GRANT OF OPTIONS. Subject to the terms and conditions set forth in
this Agreement, the Company grants to the Director options to purchase an
aggregate of Fifty Thousand (50,000) shares of Common Stock (the "Options").

         2.2 DATE OF GRANT; EXERCISE PRICE. The date of grant of the Options is
April 29, 2004 (the "Grant Date"). The exercise price of the Options is
Twenty-Five Cents ($0.25) per share of Common Stock.

         2.3 MAXIMUM TERM OF OPTIONS. In no event may the Options be exercised,
in whole or in part, after April 28, 2014.

         2.4 VESTING OF OPTIONS. Subject to the provisions of Article III below,
all of the Options shall vest and be exercisable on and after April 29, 2005.

         2.5 EXERCISE AND PAYMENT.

                  (a) Subject to the provisions of Section 2.4 above, the
         Options may be exercised, in whole or in part, by delivery of written
         notice to the Company indicating the number of Options which are being
         exercised by the Director, accompanied by payment of the full amount of
         the "Aggregate Exercise Price" (as such term is hereinafter defined).

                  (b) For purposes of this Section 2.5, the term "Aggregate
         Exercise Price" shall mean Twenty-Five Cents ($.25) multiplied by the
         number of Options being exercised by the Director.

                  (c) The Aggregate Exercise Price shall be paid by the Director
         to the Company by the delivery of (i) cash, (ii) certified or cashiers'
         check, (iii) shares of Common Stock already owned by the Director, (iv)
         the withholding of shares of Common Stock issuable

                                       3
<PAGE>

         upon such exercise of the Options, (v) irrevocable instructions to a
         broker to deliver promptly to the Company the amount of sale or loan
         proceeds required to pay the purchase price, or (vi) any combination of
         the foregoing methods of payment. Shares of Common Stock delivered in
         payment of all or any part of the amounts payable in connection with
         the exercise of Options, and shares of Common Stock withheld for such
         payment, shall be valued for such purpose at their "Fair Market Value"
         (as such term is hereinafter defined) as of the date of exercise of the
         Options.

                  (d) "Fair Market Value" of a share of Common Stock on any day
         means the last sale price (or, if no last sale price is reported, the
         average of the high bid and low asked prices) for a share of Common
         Stock on such day (or, if such day is not a trading day, on the next
         preceding trading day) as reported on NASDAQ or, if not reported on
         NASDAQ, as quoted by the National Quotation Bureau Incorporated, or if
         the Common Stock is listed on an exchange, on the principal exchange on
         which the Common Stock is listed. If for any day the Fair Market Value
         of a share of Common Stock is not determinable by any of the foregoing
         means, then the Fair Market Value for such day shall be determined in
         good faith by the Company on the basis of such quotations and other
         considerations as the Company deems appropriate.

         2.6 LIMITATIONS ON EXERCISE AND ASSIGNMENT. During the Director's
lifetime, the Options granted pursuant to this Agreement shall be exercisable
only by the Director, and the Options shall not be transferable except, in case
of the death of the Director, by will or by the laws of descent and
distribution. The Options granted pursuant to this Agreement shall not be
subject to attachment, execution or other similar legal process. In the event of
(a) any attempt by the Director to alienate, assign, pledge, hypothecate or
otherwise dispose of the Options, except as provided herein, or (b) the levy of
any attachment, execution or similar legal process upon the rights or interest
granted to the Director pursuant to this Agreement, the Company, at its option,
may terminate the Options by the delivery of written notice to the Director and
the Options shall thereupon become null and void.

         2.7 NO RIGHTS OF SHAREHOLDER. Neither the Director nor any other person
shall be, or shall have any of the rights and privileges of, a shareholder of
the Company with respect to any shares of Common Stock purchasable or issuable
upon the exercise of the Options, in whole or in part, prior to the date of
exercise of the Options and payment in full of the Aggregate Exercise Price
therefor.

         2.8 STOCK ADJUSTMENT. If there is any change in the number of issued
and outstanding shares of Common Stock by reason of any stock split, stock
dividend, recapitalization or other similar transaction, then the number of
shares of Common Stock subject to the Options and the Exercise Price shall be
proportionately adjusted.

         2.9 STOCK RESERVED. The Company shall at all times during the term of
this Agreement reserve and keep available such number of shares of its
authorized but unissued Common Stock, or its Common Stock held as treasury
stock, as shall be sufficient to satisfy the terms of this Agreement.

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<PAGE>

         2.10 CORPORATE REORGANIZATION. If there shall be any capital
reorganization or consolidation or merger of the Company with another
corporation or corporations or entity or entities, or any sale of all or
substantially all of the Company's properties and assets to any other
corporation or corporations or entity or entities, then, in any such event, the
Company shall take such action as may be necessary to enable the Director to
receive upon any subsequent exercise of the Options, in whole or in part,
including any shares under the Options for which the right to exercise has not
accrued pursuant to the provisions of Section 2.4 above, in lieu of shares of
Common Stock, securities or other assets as were issuable or payable upon such
reorganization, consolidation, merger or sale in respect of, or in exchange for,
such shares of Common Stock.


                                   ARTICLE III

                            DELIVERY OF CERTIFICATES
                            ------------------------

         As soon as practicable following any exercise by the Director of the
Options, the Company shall deliver or cause to be delivered to the Director a
certificate or certificates representing the shares of Common Stock acquired
pursuant to any such exercise; provided, however, that the Company may postpone
the time of delivery of any certificate for such period of time as the Company
shall deem necessary or desirable in order to enable it to comply with (i) the
listing requirements of any securities exchange or the National Association of
Securities Dealers, Inc. Automated Quotation system, (ii) the requirements of
the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934,
as amended, and the rules and regulations promulgated thereunder (collectively,
the "Federal Securities Laws"), or (iii) the requirements of any applicable
state securities or blue sky laws and the rules and regulations promulgated
thereunder (collectively, the "State Securities Laws").


                                   ARTICLE IV

          CERTAIN REPRESENTATIONS, WARRANTIES, COVENANTS AND AGREEMENTS
          -------------------------------------------------------------
                                 OF THE DIRECTOR
                                 ---------------

         The Director represents and warrants to the Company, and covenants and
agrees with the Company, as follows:

                  (a) The shares of Common Stock to be issued to the Director
upon any exercise of the Options are being acquired by the Director for his own
account, and not for the account or beneficial interest of any other person or
entity. The shares of Common Stock to be issued to the Director upon any
exercise of the Options are not being acquired by the Director with a view to,
or for resale in connection with, any "distribution" within the meaning of the
Federal Securities Laws or any applicable State Securities Laws.

                                       5
<PAGE>

                  (b) The shares of Common Stock to be issued to the Director
upon any exercise of the Options have not been, and will not be, registered
under the Federal Securities Laws or any State Securities Laws and, as such,
must be held by the Director unless and until they are subsequently so
registered under the Federal Securities Laws and any applicable State Securities
Laws or an exemption from registration thereunder is available. The shares of
Common Stock to be issued to the Director upon any exercise of the Options
constitute "restricted securities," as that term is defined in Rule 144
promulgated by the Securities and Exchange Commission under the Securities Act.

                  (c) The Director shall not sell, assign, transfer, convey,
pledge, hypothecate, encumber or otherwise dispose of (collectively, a
"Transfer") any or all of the shares of Common Stock to be issued to him upon
any exercise of the Options, unless such Transfer is registered under the
Federal Securities Laws and any applicable State Securities Laws or a specific
exemption from registration thereunder is available. Any Transfer of any or all
of the shares of Common Stock to be issued to the Director upon any exercise of
the Options which is made pursuant to an exemption claimed under the Federal
Securities Laws and any applicable State Securities Laws will require a
favorable opinion of the Director's legal counsel, in form and in substance
satisfactory to the Company and its legal counsel, to the effect that such
Transfer does not and will not violate the provisions of the Federal Securities
Laws or any applicable State Securities Laws.

                  (d) The Company is under no obligation whatsoever to file any
registration statement under the Federal Securities Laws or any State Securities
Laws to register any Transfer of any shares of Common Stock held by the
Director, or to take any other action necessary for the purpose of making an
exemption from registration available to the Director in connection with any
such Transfer. Stop transfer instructions will be issued by the Company with
respect to the shares of Common Stock to be issued to the Director upon any
exercise of the Options.

                  (e) There will be placed upon all of the certificates
representing shares of Common Stock delivered by the Company to the Director,
and any and all certificates delivered in partial or total substitution
therefor, a restrictive legend which will read substantially as follows:

                  THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD,
         ASSIGNED, TRANSFERRED, CONVEYED, PLEDGED, HYPOTHECATED, ENCUMBERED OR
         OTHERWISE DISPOSED OF UNLESS (A) THEY ARE COVERED BY A REGISTRATION
         STATEMENT OR POST-EFFECTIVE AMENDMENT THERETO, EFFECTIVE UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR (B) SUCH SALE, ASSIGNMENT,
         TRANSFER, CONVEYANCE, PLEDGE, HYPOTHECATION, ENCUMBRANCE OR OTHER
         DISPOSITION IS EXEMPT FROM THE PROVISIONS OF SECTION 5 OF THAT ACT.

                                       6
<PAGE>


                                    ARTICLE V

                        CHANGE IN CONTROL OF THE COMPANY
                        --------------------------------

         Upon the occurrence of any Change in Control of the Company, other than
an Approved Change in Control of the Company, notwithstanding anything to the
contrary set forth herein, all of the Options granted hereunder shall
immediately vest and become exercisable in full.


                                   ARTICLE VI

                            MISCELLANEOUS PROVISIONS
                            ------------------------

         6.1 GOVERNING LAW. This Agreement shall be governed by, and shall be
construed and interpreted in accordance, with the laws of the State of Florida,
without giving effect to the principles of the conflict of laws thereof.

         6.2 NOTICES. Any and all notices and other communications required or
permitted to be given pursuant to this Agreement shall be in writing and shall
be deemed to have been duly given when delivered by hand, or when delivered by
mail, by registered or certified mail, postage prepaid, return receipt
requested, to the respective parties at the following respective addresses:

If to the Company:                  Cord Blood America, Inc.
                                    10940 Wilshire Blvd.
                                    Sixth Floor
                                    Beverly Hills, California  90024
                                    Attention:  Chief Executive Officer

If to the Director:                 Stephen Weir
                                    9314 Saint Leger Place
                                    Wesley Chapel, Florida  33544

or to such other address as either party may from time to time give written
notice of to the other in accordance with the provisions of this Section 6.2.

         6.3 ENTIRE AGREEMENT. This Agreement constitutes the entire agreement
between the Company and the Director with respect to the subject matter hereof
and supersedes all prior agreements, understandings, negotiations and
arrangements, both oral and written, between the Company and the Director with
respect to such subject matter.

         6.4 AMENDMENTS. This Agreement may not be amended or modified in any
manner, except by a written instrument executed by each of the Company and the
Director.

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<PAGE>


         6.5 BENEFITS; BINDING EFFECT. This Agreement shall be for the benefit
of, and shall be binding upon, each of the Company and the Director and their
respective heirs, personal representatives, executors, legal representatives,
successors and assigns.

         6.6 SEVERABILITY. The invalidity of any one or more of the words,
phrases, sentences, clauses or sections contained in this Agreement shall not
affect the enforceability of the remaining portions of this Agreement or any
part hereof, all of which are inserted conditionally on their being valid in
law. If any one or more of the words, phrases, sentences, clauses or sections
contained in this Agreement shall be declared invalid by any court of competent
jurisdiction, then, in any such event, this Agreement shall be construed as if
such invalid word or words, phrase or phrases, sentence or sentences, clause or
clauses, or section or sections had not been inserted.

         6.7 NO WAIVERS. The waiver by either party of a breach or violation of
any provision of this Agreement by any other party shall not operate nor be
construed as a waiver of any subsequent breach or violation. The waiver by
either party to exercise any right or remedy it or he may possess shall not
operate nor be construed as a bar to the exercise of such right or remedy by
such party upon the occurrence of any subsequent breach or violation.

         6.8 HEADINGS. The headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or
interpretation of any or all of the provisions hereof.

         6.9 COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the separate parties in separate counterparts, each of which
shall be deemed to constitute an original and all of which shall be deemed to
constitute the one and the same instrument.


         IN WITNESS WHEREOF, each of the parties has executed and delivered this
Agreement on the date first written above.


CORD BLOOD AMERICA, INC.




By       Matthew L. Schissler                                   Stephen Weir
         --------------------                                   ------------
         Matthew L. Schissler,                                  Stephen Weir
         Chairman and Chief Director Officer


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Source: OneCLE Business Contracts.