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Statement-I Boy/girl who is blind by bir...

Statement-I Boy/girl who is blind by birth attains sexual maturity early
Statement-II:Darkness stimulate the release of melatonin

A

Statement-I and statement-II both are correct

B

Statement-I is correct and statement -is wrong

C

Statement-I is wrong and statement-II is correct

D

Both statement -I and statement-II are wrong

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Statement I**: The first statement claims that boys or girls who are blind from birth attain sexual maturity early. To analyze this, we need to consider the role of melatonin, a hormone produced by the pineal gland. 2. **Role of Melatonin**: Melatonin is known to regulate various bodily functions, including the sleep-wake cycle and reproductive functions. It has an anti-gonadal effect, meaning it can delay puberty and menstruation. 3. **Light and Melatonin Production**: Melatonin secretion is stimulated by light exposure to the retina. In individuals who are blind from birth, there is no light stimulation, leading to lower levels of melatonin. 4. **Consequences of Low Melatonin Levels**: With low melatonin levels, the anti-gonadal effect is diminished. This absence allows individuals who are blind from birth to attain sexual maturity earlier than those who are not blind. 5. **Understanding Statement II**: The second statement states that darkness stimulates the release of melatonin. This is accurate as melatonin is primarily secreted during the night when there is no light. 6. **Conclusion**: Both statements are correct. Statement I is correct because blind individuals have lower melatonin levels, leading to earlier sexual maturity. Statement II is also correct as melatonin release is stimulated by darkness. **Final Answer**: Both Statement I and Statement II are correct. ---
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