noun
sex chromosome
Biological term for chromosomes that determine sex (e.g., X and Y in mammals). Contrasts with 常染色体 (autosome).
See also: 常染色体
ヒトの性染色体はXとYの2種類がある。
Humans have two types of sex chromosomes: X and Y.
性染
Some disorders are caused by abnormalities in the sex chromosomes.