本题目来源于试卷: Continuity and Change D.4 Cell & Nuclear Division，类别为 IB生物学
[单选题]
The diagram below represents a ce 3io y2dv4y3e zll with a diploid numbe )v9e b9-wjsp hr of 4. Which stage of cell division is the ce jse9wpb h9- v)ll currently undergoing?
A. Metaphase I
B. Anaphase II
C. Metaphase in mitosis
D. Prophase I
参考答案: D
本题详细解析:
Choice D is correct because there are four chromosomes, and each chromosome is composed of sister chromatids. Choice A and choice C are incorrect because, in metaphase, chromosomes are lined up on the equator. Choice B is incorrect because, during anaphase II, chromosomes are being pulled apart and towards opposite poles.
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