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Concept information

Preferred term

genetic drift  

Definition

  • [Henderson's] (1) random changes in gene frequency in small isolated populations owing to factors other than natural selection, such as sampling of only a small number of gametes in each generation. alt. Sewall Wright effect; (2) random nucleotide changes in a gene not subject to natural selection; (3) small changes in the genome of the influenza virus that cause annual outbreaks but not serious epidemics or pandemics. cf. genetic shift.

Broader concept

Scope note

  • MS Academic Keywords

URI

http://vocabs.lter-europe.net/EnvThes/21623

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