小麦无芒（A）对有芒（a）为显性，高秆（D）对矮秆（d）为显性，二者是独立遗传的，今 发布时间：2017-07-23 03:01 │ 来源：www.tikuol.com 题型：问答题 问题： 小麦无芒（A）对有芒（a）为显性，高秆（D）对矮秆（d）为显性，二者是独立遗传的，今用基因型DdAa的个体作为母本，基因型ddAa的个体为父本进行杂交，试问子代的表现型种类及各自的比例如何？
题型：问答题 选用方框内的动词的适当形式填空:, be, have, drive, take, do, break, sing, go, stop, tell, finish, come1. What _____ he usually _____ on Sundays?2. Uncle Li _____ to Zhenzhen yesterday. He _____ back next week. 3. Grandpa _____ me an interesting story last night. 4. _____ your parents _____ working very late that day?5. He came into the room and _____ a song for us all. 6. It _____ me half an hour to finish the work yesterday evening. 7. —_____ they _____ a get-together over there? —Yes, they are. 8. _____ the girl born in July or June?9. He _____ goodbye to his father and left the home. 10. The man _____ the car very carelessly, so he had an accident. 查看答案