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A single site in any DNA sequence for which the identity of the nucleotide differs among individuals, often associated with a physiological variation, such as response to a drug, and used as a genetic marker.
[s(ingle) n(ucleotide) p(olymorphism).]
(Government, Politics & Diplomacy) Scottish National Party
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|Noun||1.||SNP - (genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species|
polymorphism - (genetics) the genetic variation within a population that natural selection can operate on