题目

A.     Find out what is expected of you.          B. Know what you expect from the others. C. Consider what resources you have to offer.    D. Be sure to offer help to other family members. E. Keep close contact with other family members. F. Work out exactly what your role is in the family. How to Become a Good Family Member Do you feel like you don’t fit in within your family, or maybe you do but want to know how you can be an even better member in the family? Then try some of these steps to see if you could be doing more to keep your home life happy! 61. ___________两个红眼长翅的雌、雄果蝇相互交配，后代表现型及比例如下表： 表现型 红眼长翅 红眼残翅 白眼长翅 白眼残翅 雌蝇 3 1 0 0 雄蝇 3 1 3 1 设眼色基因为A、a，翅长基因为B、b，亲本的基因型是  （  ） A．AaXBXb 、AaXBY              B．BbXAXa、  BbXAY C．AaBb 、AaBb               D．AABb 、AaBB