headed chromosome

例句：

1. 1. Headed chromosomes are responsible for the formation of new cells.
   有头染色体负责形成新细胞。
2. 2. The study of headed chromosomes has led to significant advancements in genetics.
   研究有头染色体的研究在遗传学领域取得了重大进展。
3. 3.In humans, the number of headed chromosomes varies depending on age and gender.
   人类中，头部染色体的数量根据年龄和性别而变化。