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

Corpus luteum will disintegrate.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Progesterone secretion rapidly declines.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Estrogen secretion further decreases.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Primary follicle starts developing.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Estrogen secretion further decreases.
If pregnancy occurs, human chorionic gonadotropin is released maintaining the corpus luteum allowing it to maintain levels of progesterone. In the other way round, (i.e., in case fertilization does not occur), progesterone levels fall due to the disintegration of the corpus luteum.
The primary follicle is a precursor to the corpus luteum and thus this is most unlikely to happen. At the start of the menstrual cycle, some 12-20 primary follicles begin to develop under the influence of elevated FSH to form secondary follicles.
The primary follicles have formed from primordial follicles, which developed in the ovary at around 10-30 weeks after conception.

Therefore, the correct answer is option C.

Suggest Corrections

Similar questions

Q. If mammalian ovum fails to get fertilized, which one of the following is unlikely -

Q. If mammalian ovum fails to get fertilized, which one of the following is unlikely in this cycle?

Q. Refer to the given schematic representation of menstrual cycle showing three phases I, II and Ill.

Select the option that correctly matches these phases with the following events.

(i) FSH secreted by the anterior pituitary stimulates the ovarian follicle to secrete estrogen which stimulates the proliferation of the endometrium.

(ii) LH secreted by the anterior pituitary stimulates the development of corpus luteum which secretes progesterone.

(iii) Reduced production of LH from anterior pituitary causes degeneration of corpus luteum, thereby progesterone production is reduced.

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

In menstrual cycle one ovum is released from either ovaries and the remaining graffian follicle converts into corpus luteum which will secret progesterone for only 7 days but if pregnancy occurs then it secret progesterone for 3 months , in this scenario how the corpus luteum will secret RELAXIN at the parturition at 9 month if it is already died and replaced by placenta?

Join BYJU'S Learning Program