GUANINE

Guanine

Guanine is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine . In DNA, guanine is paired with cytosine. With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. Being unsaturated, the bicyclic molecule is planar. The guanine nucleoside is called guanosine.

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guanine

Noun

  1. A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA.


The above text is a snippet from Wiktionary: guanine
and as such is available under the Creative Commons Attribution/Share-Alike License.

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