"single nucleotide polymorphism"@en-us . "(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"@en-us . . . "111493452"^^ . . . . "0"^^ . . . . "SNP"@en-us . . "11493452-n"^^ . "0"^^ . "single nucleotide polymorphism"^^ .