natural mutation


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Related to natural mutation: induced mutation

spon·ta·ne·ous mu·ta·tion

a mutation that arises naturally and not as a result of exposure to mutagens.
Synonym(s): natural mutation

natural mutation

Mutation occurring without artificial external intervention. Natural mutation is thought to be a primary factor in evolutionary change.
See also: mutation
References in periodicals archive ?
Interestingly, this isolate was antigenically FPLV-type but had a natural mutation of VP2 residue 323 Asp to CPV-specific Asn, supporting previous site-directed mutagenesis studies.
Runners and cyclists have been under fire in recent years for illegally using the hormone EPO, or erythropoieten, to improve performance, but there are also natural mutations of the gene that can allow a person to manufacture up to 50 per cent more red blood cells than people who don't have it, thereby vastly increasing stamina.
They then bred the bacteria for years in harsh laboratory conditions to select for natural mutations that make the bacteria good oil processors and able to withstand the extreme temperatures and pressures in oil wells.
Genetic stocks are those with induced and natural mutations, cytological (cellular) stocks of genetic oddities, and variations on normal chromosomes, marker genes, and pest-resistant stocks.