问题
选择题
犬也存在色盲性状。下图为某一品种犬的系谱图(涂黑表示色盲)。请据图判断此品种犬色盲的遗传方式错误是

A.常染色体显性遗传
B.常染色体隐性遗传
C.伴X染色体显性遗传
D.伴X染色体隐性遗传
答案
答案:C
犬也存在色盲性状。下图为某一品种犬的系谱图(涂黑表示色盲)。请据图判断此品种犬色盲的遗传方式错误是
A.常染色体显性遗传
B.常染色体隐性遗传
C.伴X染色体显性遗传
D.伴X染色体隐性遗传
答案:C
Look! This is a nice 小题1: .It’s Sunday morning. There小题2: many boys and girls in the park. Some of them are singing 小题3: the tree. Some are 小题4: in the river. Other 小题5: are playing games on the hill. Maria is an American girl. She is 小题6: to her classmates. She is in the park, too. What is she doing? She is sitting and 小题7: a book. She 小题8: reading very much. Tom is an English boy. He is five 小题9: old. He is too young. He can’t 小题10: to school. Now he is flying a kite.(放风筝) |