URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
FEMALE REPRODUCTIVE TRACT
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Question
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If fertilisation doesn’t happen in what stage of meiosis II does the secondary oocyte reach?
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Telophase
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Prophase
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Metaphase
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Anaphase
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Explanation:
Detailed explanation-1: -The secondary oocyte will only complete meiosis II following fertilisation. Here, it gives off a third polar body. Following meiosis II, a fertilised egg results. If fertilisation doesn’t occurs, the oocyte degenerates 24 hours after ovulation, remaining arrested in meiosis II.
Detailed explanation-2: -After ovulation the oocyte is arrested in metaphase of meiosis II until fertilization.
Detailed explanation-3: -The ovulated egg is in second meiotic metaphase when it is released (Figure 19.24).
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