single nucleotide polymorphism

Noun
  1. (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 (synset 111513852)
    referred to in: genetic science, genetics - the branch of biology that studies heredity and variation in organisms
    is a type of: polymorphism - (genetics) the genetic variation within a population that natural selection can operate on
    same as: snp

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