biological father

The man from whom one inherits half of one's DNA and from whom men inherit their Y chromosome.

Japanese Meaning

遺伝子上の父親、すなわち、自分のDNAの半分を遺伝し、男性はY染色体を受け継ぐ父親（実際の生物学的な父親）

After the DNA test, he met his biological father, the man who had given him half of his DNA and, as a male, his Y chromosome.

DNA検査の後、彼は自分の実父に会った。彼は自分のDNAの半分を与え、男性の場合はY染色体を受け継がせた男性だ。

Sense（1）

The man from whom one inherits half of one's DNA and from whom men inherit their Y chromosome.

biological fathers

（ plural ）