Genetic Function
genetic drift
ge·net·ic drift
Subclass of:
Biological Evolution; Gene Frequency
Definitions related to genetic drift:
  • The fluctuation of the ALLELE FREQUENCY from one generation to the next.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The random change of the occurrence of a particular gene in a population, genetic drift is thought to be one cause of speciation when a group of organisms is separated from its parent population.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Genetic drift, a change in the gene pool of a small population that takes place strictly by chance. Genetic drift can result in genetic traits being lost from a population or becoming widespread in a population without respect to the survival or reproductive value of the alleles involved...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.