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 ?
Subsequently, the new antigenic type viruses were shown to have a natural mutation of VP2 in common (11) (residue 300 Gly to an Asp, Table), which results in remarkable changes of their antigenic properties.
By targeting the natural mutation mechanism of HIV, the process the virus uses to develop drug resistance, and directing that activity toward the eventual destruction of the virus itself, KP-1461 has demonstrated the potential to ablate HIV infection in vitro and was well tolerated in a Phase 1a trial involving healthy subjects.
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.
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.