Guanine and cytosine are what?

Kaitlyn K. answered • 11/03/16

Tutor

New to Wyzant

Adjunct Science Professor at Penn Highlands Community College

Guanine and Cytosine are nucleic bases that pair together during DNA replication and during the translation of DNA to RNA.

Guanine is classified as a purine; it is a double ring structure.

Cytosine is classified as a pyrimidine; it is a single ring structure.

To form bonds purines can only pair with pyrimidines.

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