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Related to nucleotide pair: chromosome pair
base pair (b.p., bp),
the complex of two heterocyclic nucleic acid bases, one a pyrimidine and the other a purine, brought about by hydrogen bonding between the purine and the pyrimidine; base pairing is the essential element in the structure of DNA proposed by J. Watson and F. Crick in 1953; usually guanine is paired with cytosine (G·C), and adenine with thymine (A·T) or uracil (A·U).
Farlex Partner Medical Dictionary © Farlex 2012
nucleotide pairtwo NUCLEOTIDES of opposite strands of DNA, joined by weak hydrogen bonds (see Fig. 234 ). See COMPLEMENTARY BASE PAIRING.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005