问题
选择题
下列各组交配组合中，后代基因型有6种，表现型有2种的一组是：[ ]
A．AaBb和aaBb
B．AaBb和AABb
C．aaBb和Aabb
D．AABB和aabb
答案
答案：B
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下列各组交配组合中，后代基因型有6种，表现型有2种的一组是：[ ]
A．AaBb和aaBb
B．AaBb和AABb
C．aaBb和Aabb
D．AABB和aabb
答案：B
| 交际运用。 A: Lily, where are you going for vacation? B: 1 A: That sounds great. ____2____ B: I am going surfing in the sea. ____3____ A: I am visiting the places of interesting in Hangzhou. B: Sounds cool. ____4____ A: Just for three days. B: ____5____ A: The same to you. | |
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