These are passed down from parents during reproduction and are composed of individual strands of the DNA which contribute to the unique make up of you.单项选择题

A

DNA

B

Genes

C

Nucleus

D

Chromosomes

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

更多留学生实用工具

加入我们,立即解锁 海量真题独家解析,让复习快人一步!