natural mutation


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
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.
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.
Developing a truly outstanding new variety is a rare event in any garden, home or commercial, but small-scale gardeners have created hybrids or reselections or have chanced on natural mutations that have changed the history of agriculture.
Because natural mutations over the millennia change DNA sequences, scientists can use these sequences to sort out which animals are most closely related to which.
Such natural mutations, called 'de novo' mutations, are responsible for the majority of genetic defects.