Methods for identifying differentially expresses genes and differences between genomic nucleic acid sequences are described. These methods typically include: (a) providing a tester DNA molecule with an amplification tag at the 5' and 3' ends of the molecule and a driver DNA or RNA...http://www.google.de/patents/US5804382?utm_source=gb-gplus-sharePatent US5804382 - Methods for identifying differentially expressed genes and differences between genomic nucleic acid sequences 
