Informax Inc Watch

from SC 13G/A 1 page Exhibit 1 Joint Filing Agreement Among Friedman, Billings, Ramsey Group, Inc., Eric F. Billings, and Emanuel J. Friedman Whereas, in Accordance With Rule 13d-1(k) Under the Securities and Exchange Act of 1934 (The "Act"), Only One Joint Statement and Any Amendments Thereto Need to Be Filed Whenever One or More Persons Are Required to File Such a Statement or Any Amendments Thereto Pursuant to Section 13(d)of the Act With Respect to the Same Securities, Provided That Said Persons Agree in Writing That Such Statement or Amendments Thereto Is Filed on Behalf of Each of Them; Now, Therefore, the Parties Hereto Agree as Follows: Friedman, Billings, Ramsey Group, Inc., Eric F. Billings, and Emanuel J. Friedman Hereby Agree, in Accordance With Rule 13d-1(k) Under the Act, to File a Statement on Schedule 13g Relating to Their Ownership of Common Stock of the Issuer and Do Hereby Further Agree That Said Statement Shall Be Filed on Behalf of Each of Them. Friedman, Billings, Ramsey Group, Inc. Dated: November 12, 2002 By: /S/ Emanuel J. Friedman Name: Emanuel J. Friedman Title: Chairman Dated: November 12, 2002 /S/ Eric F. Billings Eric F. Billings Dated: November 12, 2002 /S/ Emanuel J. Friedman Emanuel J. Friedman

from SC 13G/A 1 page Exhibit 1 Joint Filing Agreement Among Friedman, Billings, Ramsey Group, Inc., Eric F. Billings, and Emanuel J. Friedman Whereas, in Accordance With Rule 13d-1(k) Under the Securities and Exchange Act of 1934 (The "Act"), Only One Joint Statement and Any Amendments Thereto Need to Be Filed Whenever One or More Persons Are Required to File Such a Statement or Any Amendments Thereto Pursuant to Section 13(d)of the Act With Respect to the Same Securities, Provided That Said Persons Agree in Writing That Such Statement or Amendments Thereto Is Filed on Behalf of Each of Them; Now, Therefore, the Parties Hereto Agree as Follows: Friedman, Billings, Ramsey Group, Inc., Eric F. Billings, and Emanuel J. Friedman Hereby Agree, in Accordance With Rule 13d-1(k) Under the Act, to File a Statement on Schedule 13g Relating to Their Ownership of Common Stock of the Issuer and Do Hereby Further Agree That Said Statement Shall Be Filed on Behalf of Each of Them. Friedman, Billings, Ramsey Group, Inc. Dated: February 13, 2002 By: /S/ Emanuel J. Friedman Name: Emanuel J. Friedman Title: Chairman Dated: February 13, 2002 /S/ Eric F. Billings Eric F. Billings Dated: February 13, 2002 /S/ Emanuel J. Friedman Emanuel J. Friedman

from SC 13G 1 page Exhibit 1 Joint Filing Agreement Among Friedman, Billings, Ramsey Group, Inc., Fbr Genomics LLC, Eric F. Billings, Emanuel J. Friedman and W. Russell Ramsey Whereas, in Accordance With Rule 13d-1(k) Under the Securities and Exchange Act of 1934 (The "Act"), Only One Joint Statement and Any Amendments Thereto Need to Be Filed Whenever One or More Persons Are Required to File Such a Statement or Any Amendments Thereto Pursuant to Section 13(d) of the Act With Respect to the Same Securities, Provided That Said Persons Agree in Writing That Such Statement or Amendments Thereto Is Filed on Behalf of Each of Them; Now, Therefore, the Parties Hereto Agree as Follows: Friedman, Billings, Ramsey Group, Inc., Fbr Genomics LLC, Eric F. Billings, Emanuel J. Friedman and W. Russell Ramsey Hereby Agree, in Accordance With Rule 13d-1(k) Under the Act, to File a Statement on Schedule 13g Relating to Their Ownership of Common Stock of the Issuer and Do Hereby Further Agree That Said Statement Shall Be Filed on Behalf of Each of Them. Friedman, Billings, Ramsey Group, Inc. Dated: February 15, 2001 By: /S/ Emanuel J. Friedman Name: Emanuel J. Friedman Title: Chairman Dated: February 15, 2001 Fbr Genomics LLC By: /S/ Emanuel J. Friedman Name: Emanuel J. Friedman Title: Managing Member Dated: February 15, 2001 /S/ Eric F. Billings Eric F. Billings Dated: February 15, 2001 /S/ Emanuel J. Friedman Emanuel J. Friedman Dated: February 15, 2001 /S/ W. Russell Ramsey W. Russell Ramsey

from S-1/A ~50 pages Underwriting agreement