Response Genetics, Inc. is a life science company. The Company is engaged in the research, development, marketing and sale of pharmacogenomic tests for use in the treatment of cancer. To generate pharmacogenomic information from patient specimens for these tests, the Company uses its own methods for the extraction and analysis of nucleic acids and accessing the genetic information available from each patient sample. The Company's platforms include analysis of single biomarkers using the polymerase chain reaction method, as well as gene interrogation using microarray methods and fluorescence in situ hybridization (FISH) from paraffin or frozen tissue specimens. The Company is engaged in selling ResponseDX diagnostic testing products. The Company provides pharmacogenomic clinical trial testing services to pharmaceutical companies in the United States, Asia and Europe.