A: Lactational amenorrhoea is due high level of prolactin.
R: Prolactin stimulates the releases of gonadotropins.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reasons is not the correct expalanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4).

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Lactational amenorrhea is due to a high level of prolactin."
- Lactational amenorrhea refers to the absence of menstruation during breastfeeding. This occurs because the body produces high levels of the hormone prolactin when a mother breastfeeds, which inhibits ovulation.

2. **Understanding the Reason**: The reason states that "Prolactin stimulates the release of gonadotropins."
- Gonadotropins are hormones that stimulate the gonads (ovaries in females) to produce sex hormones and trigger ovulation.

3. **Analyzing the Relationship**:
- High levels of prolactin during lactation actually inhibit the release of gonadotropins. This means that while prolactin is high, the levels of gonadotropins decrease, preventing ovulation.

4. **Conclusion**:
- The assertion is true because lactational amenorrhea is indeed due to high levels of prolactin. However, the reason is false because prolactin does not stimulate the release of gonadotropins; instead, it inhibits their release.

5. **Final Answer**:
- The assertion is true, but the reason is false.

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