Monday, March 8, 2010
Coyne explains that there is evidence of evolution in every organism's genome. "Dead" genes are genes that "once were useful but are no longer intact or expressed" (Coyne 67). These "dead" genes are not the only non-coding portion of DNA. Introns are sections of DNA that are transcribed to pre-mRNA and then spliced out during RNA editing. However, recent research suggests introns may actually serve an integral part of transcribing RNAi. How does this act as further evidence of evolution within DNA?