FOSTER CITY, Calif. & AUSTIN, Texas--(BUSINESS WIRE)--March 2, 2006--Applied Biosystems Group (NYSE:ABI), an Applera Corporation business, announced today that it has completed the previously announced acquisition of the Research Products Division of Ambion, Inc., a premium provider of innovative products for the study and analysis of ribonucleic acid (RNA), the central molecule used in gene expression and regulation.