Definition of genetic drift in English:

genetic drift

Line breaks: gen|et¦ic drift

noun

[mass noun] Biology
  • Variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
    More example sentences
    • Rare and endangered species are susceptible to loss of genetic variation through genetic drift in small populations.
    • In the absence of selection, these values reflect divergence in allele frequencies due to genetic drift.
    • The relative importance of selection and genetic drift in the evolution of duplicated genes is under debate.

More definitions of genetic drift

Definition of genetic drift in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
noun
(in science fiction) navigation in outer space