noun
fluctuation; environmental variation
Biology term for non-heritable phenotypic variation caused by environmental factors, as opposed to genetic mutation. Often contrasted with 突然変異 (mutation).
See also: 環境変異
彷徨変異は遺伝しない表現型の変化を指す。
Fluctuation refers to non-heritable phenotypic changes.
この形質の違いは彷徨変異によるものだ。
This difference in traits is due to environmental variation.