base pair noun
: one of the pairs of nucleotide bases on complementary strands of nucleic acid that consist of a purine on one strand joined to a pyrimidine on the other strand by hydrogen bonds holding together the two strands much like the rungs of a ladder and that include adenine linked to thymine in DNA or to uracil in RNA and guanine linked to cytosine in both DNA and RNA
First Known Use of BASE PAIR
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