Assertion :Mammary glands are apocrine glands. Reason: The distal part containing secretory granules break down and leaves as a secretion.

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.
Based on the mode of secretion, the glands are of three types: merocrine, apocrine and holocrine. Mammary glands that are present in mammals to feed the young ones with milk are the example of apocrine glands. In apocrine glands, the secretion accumulates as secretory granules in the distal part of the cell. This part later breaks down and leaves as a secretion.
Holocrine glands are those in which the entire cell disintegrates to secrete its substance. Examples include the sebaceous glands of the skin and the meibomian glands of the eyelid.
Merocrine glands are those in which cells secrete their substances by exocytosis. Also called "eccrine." Examples include some sweat glands and the salivary glands.
Thus, the correct answer is option (A).

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