問題詳情

42. In humans, oogenesis is completed
(A)prior to ovulation.
(B)after ovulation, but before the sperm enters the oocyte.
(C)once the sperm penetrates the oocyte.
(D) after the nuclei of the sperm and egg fuse.
(E)during embryonic development.

參考答案

答案:C
難度:適中0.571429
統計:A(2),B(2),C(20),D(5),E(3)

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