题目

已知某生物个体经减数分裂产生4种配子为Ab：aB：AB：aa = 4：4：1：1，该生物自交，其后代出现显性纯合子的几率是   (    )   A．1／16         B．1／64        C．1／100        D．1／160   答案：C由上述比例可知AB配子出现的概率是1/10，则后代出现显性纯合子的几率是1/10×1/10=1/100。----What does Anna look like?----________.She looks the same as her mother!A. She's kind B. She likes swimming C. She's a student D. She has a long nose