题目

一对相对性状可受多对等位基因控制，如某植物花的紫花和白花这对相对性状就受4对等位基因控制，当个体基因型中每对等位基因都至少含有一个显性基因时，才开紫花，否则开白花。若这4对等基因独立遗传，让基因型为AaBbEeGg植株自交，则子一代中：A.杂合子占1/16 B.白花植株共有65种基因型C.紫花植株中，纯合子占1/64 D.基因型为AAbbeegg的白花植株占1/128What does the girl's new teacher look like ?A. He is tall. B. He has blue eyes. C. He has dark hair B 【解析】W: There's our new teacher over there . M: That tall man with dark hair and green eyes ? W: No. Our teacher has grey hair and blue eyes .