SANTA CLARA, Calif.--(BUSINESS WIRE)--Affymetrix Inc., (NASDAQ:AFFX) today announced that the Company has completed its acquisition of eBioscience Holding Company, Inc., a privately-held company with an industry-leading position in flow cytometry and immunoassay reagents for immunology and oncology research and diagnostics. The acquisition enhances Affymetrix’s product portfolio and expands its addressable markets by more than $2.5 billion per year.