http://en.wikipedia.org/wiki/Transcription_%28genetics%29 [2]
http://en.wikipedia.org/wiki/Gene_expression [3]
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Transcription.html [4]
Links[1] https://www.hootsgo.org/?q=node/6339 [2] http://en.wikipedia.org/wiki/Transcription_%28genetics%29 [3] http://en.wikipedia.org/wiki/Gene_expression [4] http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Transcription.html