The base pair ratio, AT : GC , is constant within a species but differs between species.
AT:GC 之间的碱基比具有种内特异性,但在不同种之间往往是不同的.
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英英释义
Noun
1. one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with ur