下列各项与家鸽气囊功能无关的是（　　）

一株高茎豌豆（DD）和一株矮茎豌豆（dd）杂交后，后代都表现为高茎，若后代进行自花传粉，则受精卵的基因组成可能有（　　）

完形填空

I'm a Chinese boy. My name's Wu Qiang. I1 in Beijing now, because my 2work here. I 3in a high school, and I'm 4 Class 2, Grade 3. I usually 5 to school6bus. Sometimes I 7 a bike. My home is fifteen 8 from school. I don’t go to school 9 Saturdays and Sundays, so I always stay at home to do my homework, and it often 10 me half a day on Saturday. On Sunday I often go to the park with my parents. I have fun on weekends.