试题与答案

将一枝原来开红花的碧桃枝条,嫁接在一株开白花的碧桃的茎上,结果它仍然开红花,对这

题型:选择题

题目:

将一枝原来开红花的碧桃枝条,嫁接在一株开白花的碧桃的茎上,结果它仍然开红花,对这一现象的正确的解释是[ ]

A.开红花的碧桃枝条在嫁接后其遗传物质没有发生改变,所以仍然开红花

B.红碧桃和白碧桃都是属于同一个物种,所以开红花也是很正常的

C.白碧桃没有接受红碧桃的花粉

D.因为开红花的碧桃枝条是接穗,而开白花的碧桃是砧木

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E

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