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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