Meaning & use
guanine
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One of the four nitrogenous bases found in DNA and RNA, which pairs with cytosine.
See it in a sentence
Guanine pairs with cytosine through three hydrogen bonds in the DNA double helix.
Researchers measured the ratio of guanine to other bases in the genome.
A note on using this word
Abbreviated as 'G' in genetics; part of the term GC content, a measure of a genome's stability.
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