HERCULES, Calif., July 15, 2008 – Bio-Rad Laboratories, Inc. (AMEX: BIO and BIOb), a multinational manufacturer and distributor of life science research and clinical diagnostic products, today launched a new siLentMer™ siRNA search tool available online at www.bio-rad.com/rnaisearch. The siLentMer siRNA search tool offers a way to review Bio-Rad’s library of validated siRNA gene targets by searching for a siRNA (by gene symbol, NCBI accession number or Bio-Rad catalog number) or browsing either the research panels they are categorized into or an alphabetical listing of the target gene symbols.