![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
从某果蝇种群中随机抽取 200 只个体,测得基因型频率分别为 AA10%、Aa20%、aa70%。该果蝇种群中,A 与 a 的基因频率分别是()
A.65%、35%
B.20%、80%
C.15%、85%
D.40%、60%
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、20%、80%
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.65%、35%
B.20%、80%
C.15%、85%
D.40%、60%
B、20%、80%
A.20%
B.40%
C.60%
D.80%
A.75%
B.50%
C.42%
D.21%
A.43%
B.48%
C.52%
D.57%