Question

If mammalian ovum fails to get fertilised, which one of the following is unlikely?

• A. Corpus luteum will disintegrate
• B. Oestrogen secretion further decreases
• C. Primary follicle starts developing
• D. Progesterone secretion rapidly declines

Answer 1

The correct option is D
Explanation of the correct option:

1. If mammalian ovum fails to get fertilised the corpus luteum degenerate.
2. This causes disintegration of endometrium leading to menstruation and a new cycle starts.
3. Progesterone secretion declines and the primary follicle starts to develop again.

Explanation of the incorrect option:

• Other options A,B and C didnot satisfy the appropriate explanation of the given question.

Final answer: If mammalian ovum fails to get fertilised, then Progesterone secretion rapidly declines.