EMBRYO DEVELOPMENT CORPORATION
                               
                    STOCK OPTION AGREEMENT
                               
                               
          AGREEMENT, made as of the 17th day of June 1998, by and between
Embryo Development Corporation (herein after called the "Corporation"), a
corporation organized and existing under the laws of the State of Delaware,
with its principal place of business at 750 Lexington Avenue, New York, 
New York, and Karen Nazzareno (hereinafter called "Optionee").
  
  
               W  I  T  N  E  S  S  E  T  H  :
                                
          WHEREAS, the Corporation has adopted an Incentive Stock Option Plan
which provides for grants of options to purchase common stock of the 
Corporation; and
  
          WHEREAS, Optionee is presently a director or  employed by the 
Corporation or one of its subsidiaries; and
  
          WHEREAS, the Corporation considers it desirable and in its best 
interest that Optionee be given an option to purchase common stock of the 
Corporation; and
  
          WHEREAS, the Board of Directors of the Corporation adopted a plan on
March 31, 1995 by which the Optionee was granted an option described herein,
  
          NOW, THEREFORE, THE PARTIES AGREE AS FOLLOWS:
  
  
     1.   This Agreement recites all the terms and conditions of the option
granted to Optionee by the Corporation  pursuant to the Corporation's 
Incentive Stock Option Plan (the "Plan") adopted on March 31, 1995.
  
     2.   The total number of shares with respect to which options may be 
granted under the Incentive Option Plan is 2,000,000. No option may be 
granted under the Incentive Option Plan after March 15, 2005.
  
     3.   Pursuant to the terms and conditions of the Plan, the Corporation 
grants to Optionee an option (the "Option") to purchase 400,000 shares (the
 "Option Shares") of its common stock, par value $0.0001 per share, at a 
price of $0.0938 per share in the manner and subject to the provisions 
hereinafter provided.
  
     4.   Subject to earlier termination as hereafter provided, the Option 
shall terminate in all respects at, and no exercise as to any shares covered 
by the Option shall be honored after the close of business ten years after 
its grant ("Expiration Date"). Furthermore, the Option of shareholders owning
10% or more of the Company's voting power, shall terminate in all respects 
at, and no exercise as to any shares covered by the Option shall be honored 
after the close of business five years after its grant.
  
     5.   The Option is exercisable during the lifetime of the Optionee only 
by the Optionee, and, subject to the provisions of Paragraph 6 hereof, only 
if (i) at the time of any and every exercise of the Option Optionee is an 
employee or director of an Employer Corporation and (ii) Optionee shall have 
been in the continuous employ of an Employer Corporation from the date of the
Agreement to the date of exercise. As used herein, "Employer Corporation" 
shall mean any of the Corporation or a "Subsidiary Corporation", as that 
term is defined in Section 424(f) of the Internal Revenue Code of 1986, as 
amended (the "Code"), and any successor statutory provision.
  
     6.   (a)  The aggregate fair market value (determined at the time the 
options are granted) of common stock with respect to which incentive stock 
options (within the meaning of Section 422 of the Code) are exercisable for 
the first time by Optionee under the Plan or any other plan of Optionee's 
Employer Corporation or its parent and subsidiary corporations ( as defined 
in Section 424 of the Code), shall not exceed $ 100,000.00 (or such other 
individual employee maximum as may be in effect from time to time under the 
Code at the time the options are granted) in any calendar year.
  
          (b)  If Optionee disposes of common stock acquired upon the exercise 
of Options by sale or exchange either (a) within two years after the date of 
grant of the Options under which the common stock was acquired or (b) within 
one year after the acquisition of such shares, Optionee shall notify the 
Corporation of such disposition and of the amount realized upon such 
disposition.
  
     7.   (a)  If Optionee shall cease to be employed by an Employer 
Corporation by reason of death or any other reason other than voluntarily 
quitting, discharge for cause or permanent and total disability as defined in
Section 22(e)(3) of the Code ("Disability"), as determined by the 
administrator of the Plan, the Optionee or his duly appointed guardian or 
other legal representative ("Legal Representative"), as the case may be, may,
but only within the three months next succeeding such cessation of employ-
ment, exercise the Option to the extent that the Optionee would have been 
entitled to do so on the date of such cessation of his employment. If 
Optionee voluntarily quits or is discharged for cause, the Option shall
terminate on the date of cessation of employment. In no event shall the 
Option be exercisable after the Expiration Date specified in Paragraph 3 
hereof.
  
          (b)  If Optionee shall cease to be employed by an Employer 
Corporation by reason of a Disability, the Option shall be exercisable by 
Optionee or Optionee's Legal Representative, to the extent that Optionee 
would have been entitled to do so on the date of such cessation of 
employment, but only within one year following such cessation of employment 
due to said Disability. In no event shall the Option be exercisable after 
the Expiration Date specified in Paragraph 3 hereof.
  
     8.   (a)  Any exercise of the Option shall be made by the delivery by 
Optionee (or his Legal Representative) to the Corporation at its principal 
office at 750 Lexington Avenue, New York, New York, or such other place as 
the Corporation may designate, of (i) written notice of such exercise stating
the number of shares with respect to which the Option is being exercised, 
(ii) payment of the purchase price for such number of shares by cash, shares 
of Common Stock, or promissory notes secured by assets including the shares 
to be received on the exercise of the options, and (iii) a written 
certificate of Optionee (or his Legal Representative) in form and substance 
reasonably acceptable to the Corporation, to the effect that he will not 
dispose of such shares in violation of the Securities Act of 1933, as amended,
or the rules of the stock exchanged upon which the shares of common stock of 
the Corporation are listed; provided, however, if the Plan and the options 
granted thereunder and the issuance of shares upon exercise of options is 
registered under the Securities Act of 1933, as amended, Optionee (or his 
Legal Representative) need not furnish the certification described in clause
(iii) of this sentence. Promptly after receipt of the foregoing, the
Corporation shall cause to be delivered to Optionee (or his Legal 
Representative) stock certificates evidencing the number of shares as to which
the Option has then been exercised. Such certificates may contain such legend
reflecting any restrictions upon the transfer of the shares evidenced thereby
as in the opinion of counsel to the Corporation may be necessary to the 
lawful and proper issuance of the certificate. 
  
          (b)  Notwithstanding  anything to the contrary herein contained, the 
Corporation, in its discretion, may postpone the issuance and delivery of the
certificates for the shares issuable upon any exercise of the Option until 
the completion of any stock exchange listing, or registration or other 
qualification thereof under any state or federal law, rule or regulation 
which the Corporation may deem necessary or appropriate; and may require the
person exercising an Option to make such representations and furnish such
information as it may deem appropriate in connection with the issuance of the
shares in compliance with applicable law or sound corporate practice. A 
registration statement registering the shares issuable upon exercise of 
Options under the Securities Act of 1933 may be in effect from time to time, 
but the Corporation shall have no obligation to file or keep effective any 
such registration statement.
  
     9.   Neither Optionee nor his Legal Representative shall have any of the
rights of a shareholder of the Corporation with respect to the shares of common
stock issuable upon the exercise of the Option, except to the extent that one or
more certificates for such shares shall have been issued upon the due 
exercise of the Option.
  
     10.  The Option shall not be assigned, pledged or hypothecated in any way, 
shall not be subject to execution, and is not transferable by Optionee 
otherwise than by will or the laws of descent and distribution. Any attempt at
assignment, transfer, pledge, hypothecation or other disposition of the 
Option contrary to the provisions hereof, and the levy of any attachment or 
similar proceeding upon the Option, shall by null and void. 
  
     11.  If any change is made in the shares subject to the Option by reason of
a stock dividend, stock split, recapitalization, merger, consolidation, sale
or exchange of assets or other change in the shares of common stock of the 
Corporation at the time outstanding, the Board of Directors of the 
Corporation may take such action as it determines to be appropriate to adjust
the kind and number of shares and price per share or both of the shares
of common stock subject to this Option if and to the extent determined to 
be appropriate by the Board of Directors, whose determination shall be 
conclusive.
  
     12.  Except in connection with any event described in Paragraph 10b as to 
which the Board of Directors has determined to make an appropriate adjustment
as provided in paragraph 10, upon the complete liquidation of the Corporation,
the Option shall be deemed cancelled to the extent not exercised. In the event
of the complete liquidation of any Employer Corporation (Other than the 
Corporation) employing Optionee, or in the event such Corporation ceases to 
be an Employer Corporation, the Option shall be deemed cancelled to the 
extent not exercised unless Optionee shall become employed by another 
Employer Corporation (including the Corporation) concurrently with such event.
  
     13.  The Option granted hereby shall not impose any obligation on any 
Employer Corporation to continue the employment of Optionee.
  
     14.  The Corporation may require a payment by Optionee to cover applicable 
withholding for income and employment taxes in the event of the exercise of an
Option.
  
     15.  This Agreement is made under the provisions of the Corporation's 
Incentive Stock Option Plan and all of the provisions of the Plan are also
provisions of this agreement. If there is a difference between the provisions of
this Agreement and the provisions of the Plan, the provisions of the Plan 
shall govern.
  
     16.  The Plan may be terminated or amended at any time by the Board of 
Directors, except that, without stockholder approval, the Plan may not be
amended to increase the number of shares subject to the Plan, change the class
of persons eligible to receive options or materially increase the benefits 
of participants.
  
     17.  The place of administration of the Plan shall be in the State of New
York, and the validity, construction, interpretation, administration and effect
of the Plan and of its rules and regulations, and rights relating to the 
Plan, shall be determined in accordance with the laws of the State of New 
York and the General Corporation Law of Delaware.
  
     18.  The pronouns used herein and the words Optionee and Legal 
Representative and the pronouns therefor, shall be construed as masculine, 
feminine or neuter, and in the singular or plural, as the sense requires.
  
  
  
  
  
  
 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of 
 the date first above set forth.
  
  
  
                    EMBRYO DEVELOPMENT CORPORATION
  
                         By:  /s/ Matthew Harriton                      
                         -----------------------------
  
                         Matthew Harriton, CEO
  
  
                         By:  /s/ Karen Nazzareno    
                         -----------------------------
                                                                                
                         Karen Nazzareno, Optionee