问题
填空题 案例分析题
某种鸟类体色（基因用A、a表示）、条纹的有无（基因用B、b表示）是两对独立遗传的相对性状，下表是三组相关杂交试验情况。请分析后回答问题：
根据第1、3组杂交试验的结果，可判定这两对性状中的显性性状分别是（）。
答案
参考答案：无纹、绿色（或绿色、无纹）
搜题请搜索小程序“爱下问搜题”
某种鸟类体色（基因用A、a表示）、条纹的有无（基因用B、b表示）是两对独立遗传的相对性状，下表是三组相关杂交试验情况。请分析后回答问题：
根据第1、3组杂交试验的结果，可判定这两对性状中的显性性状分别是（）。
参考答案：无纹、绿色（或绿色、无纹）
完型填空 My friend Tony is an American 1 . He is ten years old. He lives 2 his family in China now. There are 3 people in his family; his mother Mrs. Green, his father Mr. Green and his little sister Amy. He has a white cat. 4 name is Betty. Look！Amy is playing 5 Betty. His father, Mr. Green, is watching TV. His mother is doing housework. What about Tony? He is doing 6 Chinese homework. He can't 7 Chinese well, but he likes Chinese very much. Tony's 8 works in a TV station. His father works in a school as an 9 teacher. Tony and his sister 10 to the same school.
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