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base pair

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WordReference Random House Unabridged Dictionary of American English © 2026

base′ pair′, [Genetics.]

Biochemistry, Geneticsany of the pairs of the hydrogen-bonded purine and pyrimidine bases that form the links between the sugar-phosphate backbones of nucleic acid molecules: the pairs are adenine and thymine in DNA, adenine and uracil in RNA, and guanine and cytosine in both DNA and RNA.

1960–65

'base pair' also found in these entries (note: many are not synonyms or translations):

DNA - adenine - complementary base - cytosine

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