图7-1有错误吧，为什么Y染色体成对？

来源: fourwaves 于 2015-09-26 09:15:43 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.