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 cell with :qst;-xaun nb 9,kzy(k5ld v) gcn6 hpk7*+xu a diploid number of 4. Whic /pda fe h8/iy2h stage of c fi2h//8eayd pell division is the cell 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.
| 
