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Definitions from WordNet
Noun guanine has 1 sense
- guanine, G - a purine base found in DNA and RNA; pairs with cytosine
--1 is a kind of purine
--1 is a substance of
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Definitions from the Web
Guanine
Guanine is a nucleobase that is one of the four main components of DNA and RNA, along with adenine, cytosine, and thymine (in DNA) or uracil (in RNA). It is represented by the letter 'G' in the genetic code.
Definitions:
- (noun) A purine derivative that pairs with cytosine in DNA and RNA.
- (noun) A white, crystalline, water-insoluble compound, C5H5N5O, that is the N-glycoside of guanosine, occurring in guano, fish scales, sugar beets, and other natural sources, and also synthesized: used chiefly in the manufacture of pharmaceuticals and nucleic acids.
Sample Sentences:
- The DNA strand consisted of a sequence of adenine, cytosine, guanine, and thymine bases.
- Scientists have discovered the presence of guanine in the bones of prehistoric animals.
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