Akademik

(genetics) a character inherited on an all-or-none basis and dependent on the presence of a single gene

1. : a natural character that is inherited on an all or none basis

2. : a natural character dependent on the presence or absence of a single gene : a typical Mendelian or qualitative character

a characteristic, usually controlled by a single gene, that is transmitted as a unit in heredity.

[1905-10]

unit character,

a trait caused by one gene, or by a group of inseparable genes.