Assertion :A male lacks facial and pubic hair.
Reason: There is hyposecretion of testosterone from Leydig cells.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Facial hair and pubic hair in males are secondary sexual characters which develop in response to sex hormones or androgens. The principle androgen is testosterone which is secreted from Leydig cells of testes. Testosterone is the sex hormone that stimulates spermatogenesis and development of secondary sex organs and sexual characters. Hyposecretion of testosterone leads to underdevelopment or absence of these sexual characters.
So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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Assertion :A male lacks facial and pubic hair. Reason: There is hyposecretion of testosterone from Leydig cells.

Assertion :A male lacks facial and pubic hair.
Reason: There is hyposecretion of testosterone from Leydig cells.