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Dictionary

gua•nine

Pronunciation: (gwä'nēn), [key]
—n. Biochem.
a purine base, C₅H₅N₅O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine. Symbol: G Cf. guanosine.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

guanidine

guanine deaminase

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