SANTA CLARA, Calif.--(BUSINESS WIRE)--Affymetrix, Inc. (NASDAQ:AFFX) today announced the launch of QuantiGene® ViewRNA Assay formats, which enable a new era of “in situ multiplex gene expression analysis” by allowing drug screening of native cells and advancing the pace of biomarker disease research and stem cell studies. These in situ assays enable researchers to visualize gene expression in individual cells at an unprecedented level of sensitivity and speed.