The present invention provides methods for detecting the presence of a target molecule by generating multiple detectable oligonucleotides through reiterative enzymatic oligonucleotide synthesis events on a defined polynucleotide sequence. The methods generally comprise using a nucleoside, a mononucleotide,...http://www.google.com/patents/US7045319?utm_source=gb-gplus-sharePatent US7045319 - Molecular detection systems utilizing reiterative oligonucleotide synthesis