THORAX ABDOMEN AND PELVIS

MEDICAL

UTERUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If fertilisation doesn’t happen in what stage of meiosis II does the secondary oocyte reach?
A
Telophase
B
Prophase
C
Metaphase
D
Anaphase
Explanation: 

Detailed explanation-1: -However, this process is also halted at the metaphase II stage until fertilization, if such should ever occur. If the egg is not fertilized, it is disintegrated and released (menstruation) and the secondary oocyte does not complete meiosis II (and doesn’t become an ovum).

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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