Question

Given below are two statements:
Statement (I) : Progesterone has the inhibitory effect of gonadotropin release.
Statement (II) : Melatonin modulates the frequency of GnRH secretion from hypothalamous.
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Statement (I) is false but Statement (II) is true
• B. Both Statement (I) and Statement (II) are false
• C. Statement (I) is true but Statement (II) is false
• D. Both Statement (I) and Statement (II) are true

Hint:

Key endocrine regulations:
- Progesterone \(\rightarrow\) Negative feedback, inhibits GnRH/LH pulse frequency (maintains pregnancy).
- Melatonin \(\rightarrow\) Signals day length, modulating GnRH pulse frequency to coordinate seasonal breeding.

Answer 1

The Correct Option is D