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].
Base pairing rules for DNA dictate that the hydrogen bonds work to join up appropriate nucleotide pairs like jigsaw pieces-adenine with thymine and cytosine with guanine.
There are roughly 3 billion nucleotide pairs (the "building blocks" of DNA, also called "base pairs") in the human genome, 99.
In addition, the company announced today that the German Patent Office has granted a new patent (DE 10066235 or " '235 patent") in the Kreutzer-Limmer I patent series broadly covering methods, uses, and medicaments for siRNAs with a length of 15 to 49 nucleotide pairs expressed via vectors.

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