Gen-Probe to Webcast Two Upcoming Investor Presentations

Gen-Probe Incorporated (Nasdaq: GPRO) announced today that the Company will present at the Bank of America 2008 Health Care Conference in Las Vegas on May 13, 2008 at approximately 8 a.m. Pacific time (11 a.m. Eastern time) and at the Baird Growth Stock Conference in Chicago on May 14, 2008 at approximately 1:20 p.m. Central time (2:20 p.m. Eastern time). The presentations are scheduled to be webcast live and may be accessed through a link on the investors section of Gen-Probe's website at http://www.gen-probe.com. The webcasts will be available for 30 days following the event.

About Gen-Probe

Gen-Probe Incorporated is a global leader in the development, manufacture and marketing of rapid, accurate and cost-effective nucleic acid tests (NATs) that are used primarily to diagnose human diseases and screen donated human blood. Gen-Probe has approximately 25 years of NAT expertise, and received the 2004 National Medal of Technology, America's highest honor for technological innovation, for developing NAT assays for blood screening. Gen-Probe is headquartered in San Diego and employs approximately 1,000 people. For more information, go to http://www.gen-probe.com.

Caution Regarding Forward-Looking Statements

Any statements in this press release about our expectations, beliefs, plans, objectives, assumptions or future events or performance are not historical facts and are forward-looking statements. Forward-looking statements are not guarantees of performance. They involve known and unknown risks, uncertainties and assumptions that may cause actual results, levels of activity, performance or achievements to differ materially from those expressed or implied by any forward-looking statement. For information about risks and uncertainties we face and a discussion of our financial statements and footnotes, see documents we have filed with the SEC, including the Form 10-K for the year ended December 31, 2007, and all subsequent periodic filings made with the SEC. We assume no obligation and expressly disclaim any duty to update any forward-looking statement to reflect events or circumstances after the date of this press release or to reflect the occurrence of unanticipated events.

     Contact:

     Paula Izidoro
     Investor Relations
     858-410-8904

SOURCE Gen-Probe Incorporated

http://www.gen-probe.com