noun Date: 1956 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
BASE PAIR
Meaning of BASE PAIR in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012