This is the current revision of Uracil as edited by Brian(talk | contribs) at 02:16, June 8, 2007. This URL is a permanent link to this version of this page.
Uracil is one of the four bases in RNA. The others are adenine, guanine, and cytosine. Uracil replaces thymine, which is the fourth base in DNA. Like thymine, uracil always pairs with adenine.