Though the newly identified genes are located in far-flung regions on the 23 humanchromosomes, they are related in function: most play a role in learning.
尽管这最近鉴定出的遗传基因广泛存在于人体的23对染色体中，但它们关系的功能：都主要体现在学习上。
2
The technique allows doctors to check a woman's eggs for defective chromosomes, the structures that carry the human genetic code.
该项技术使医生可以检测妇女卵细胞中携带人类遗传密码的染色体的缺陷。
3
The field of biological aging has in recent years focused on the long molecules of DNA contained in human cells called chromosomes.