noun
phenotypic expression
Technical term in biology referring to the manifestation of a trait or characteristic in an organism, determined by genetic and environmental factors.
遺伝子型が同じでも、環境によって形質発現が異なることがある。
Even with the same genotype, phenotypic expression can differ depending on the environment.
Compound of 形質 (けいしつ, 'trait; character') and 発現 (はつげん, 'expression; manifestation'). The exact historical derivation is uncertain; the term is used in modern biology.