penetrance

noun pen·e·trance \ˈpe-nə-trən(t)s\

Definition of PENETRANCE

: the proportion of individuals of a particular genotype that express its phenotypic effect in a given environment

International Scientific Vocabulary, from Latin penetrare

First Known Use: 1934

Medical Dictionary

noun pen·e·trance \ˈpen-ə-trən(t)s\

: the proportion of individuals of a particular genotype that express its phenotypic effect in a given environment—compare expressivity

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