Continuity and Change D.7 Reproduction (id: 0e5275f34)

本题目来源于试卷: Continuity and Change D.7 Reproduction，类别为 IB生物学

[单选题]
The micrograph shows spermatogenesis insidevo2vnd f5 jb43 ig)gdadn -, k1uy0-cx 1v2pyqdyol;q q7+lcor(r5;o a mammalian seminiferous tubule. Whip d1qo yo275;lqv(cr o;ylq+ rch arrow indicates a spermatocyte?

A.
B.
C.
D.


参考答案:  C


本题详细解析:

Arrow C is pointing to a round cell with a large nucleus, that is closer to the middle of the tubule than the basement membrane. Choice C is correct.

Choice A is incorrect as it is pointing to the space between the cells (interstitial cells). Choice B is incorrect as it is pointing to spermatids, as indicated by the presence of tails and smaller nuclei. Choice D is incorrect as it is pointing to the basement membrane, the membrane surrounding the seminiferous tubules.

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