本题目来源于试卷: Continuity and Change D.7 Reproduction，类别为 IB生物学
[单选题]
What causes flowering al.ioq: 4;ecwv/ rlcsb0cz6k ,rq:;p?2a x;ce;z 1qyav 7.xuh
A. Differentiation in the lateral meristem
B. Changes in gene expression in the apical meristem
C. Stimulation of phototropins
D. Gene mutation in the apical meristem
参考答案: B
本题详细解析:
Choice B is correct because flowering is caused by changes in gene expression in the apical meristem. Choice A is incorrect because differentiation in the lateral meristem does not always cause flowering. Choice C is incorrect because phototropins are involved in phototropism, not flowering. Choice D is incorrect because, while expression of certain genes may control flowering, it cannot be stated that a gene mutation will cause flowering.
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