mutation

nouns

(biology) an organism that has characteristics resulting from chromosomal alteration
mutant, mutation, sport, variation
is derived from
mutational
is derived from
mutate
(genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
chromosomal mutation, genetic mutation, mutation
is derived from
mutational
is derived from
mutate
a change or alteration in form or qualities
mutation
is derived from
mutational
is a type of (narrower)
an event that occurs when something passes from one state or phase to another
"the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago"
alteration, change, modification