彷ほう徨こう変へん異い

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

• 彷ほう徨こう変へん異いは遺い伝でんしない表ひょう現げん型がたの変へん化かを指さす。

  Fluctuation refers to non-heritable phenotypic changes.

• この形けい質しつの違ちがいは彷ほう徨こう変へん異いによるものだ。

  This difference in traits is due to environmental variation.