nucleotide pair


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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).
Nucleotide pairclick for a larger image
Fig. 234 Nucleotide pair . Complementary base pairing. P = phosphate, S = sugar, A = adenine,T = thymine.

nucleotide pair

two NUCLEOTIDES of opposite strands of DNA, joined by weak hydrogen bonds (see Fig. 234 ). See COMPLEMENTARY BASE PAIRING.
References in periodicals archive ?
Synthetic Dicer substrates, 25-30 nucleotide pairs, can be significantly more effective at silencing genes at lower dose compared with many first generation siRNAs [18].
1992) estimated rates of compensation in mt rDNA by "calculat(ing) the number of mismatched nucleotide pairs for each ancestral node and then determin(ing) the number of times that these mismatches had been compensated by the next node in the tree" (fig.
Simpson of the Ludwig Institute for Cancer Research at Sao Paulo is coordinating the Brazilian research to "determine the exact sequence of the units, known as nucleotide pairs, that make up each X.
Three and a half billion of these nucleotide pairs make up the human genome.

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