優ゆう性せい遺い伝でん子し

noun

dominant gene

A gene that expresses its trait even when only one copy is present. Contrasts with 劣性遺伝子 (recessive gene).

See also: 劣性遺伝子

• 茶ちゃ色いろの目めの遺い伝でん子しは優ゆう性せい遺い伝でん子しです。

  The gene for brown eyes is a dominant gene.

• 優ゆう性せい遺い伝でん子しと劣れっ性せい遺い伝でん子しの組くみ合あわせで形けい質しつが決きまる。

  Traits are determined by the combination of dominant and recessive genes.