noun
Y chromosome
Scientific term in genetics; refers to the sex chromosome typically associated with male characteristics.
Ｙ染色体は父親から息子に受け継がれる。
The Y chromosome is passed from father to son.
The X chromosome, the other sex chromosome; females typically have two X chromosomes, while males have one X and one Y.
From English 'Y chromosome', where 'Y' refers to the shape of the chromosome under a microscope.