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]
Which arrow is pointing to a chi .68 f5tnkbhreoa bpn n(;d)f *asma p+sd/lvyu7c 6 liq5i.tt05tnqe5 hh-bu eq9;?
A.
B.
C.
D.
参考答案: D
本题详细解析:
Choice A is incorrect as it is pointing to the telomere. Choice B is wrong as it is pointing to the centromere. Choice C is incorrect as the chromatids here do not show evidence of physical linkage and hence crossing over; therefore, no chiasma is present.
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