This is the current revision of Guanine as edited by Aschlafly(talk | contribs) at 19:44, September 23, 2011. This URL is a permanent link to this version of this page.
Guanine is one of the four bases in DNA that make up the letters ATGC, guanine is the "G". The others are adenine, cytosine, and thymine. Guanine always pairs with cytosine.