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Question

In mammals, prolactin stimulates the production of

A
progesterones
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B
milk
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C
mucus in the digestive tract
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D
digestive enzymes in the small intestine
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Solution

The correct option is B milk
(A) Progesterone supports a pregnancy. It also acts on the mammary glands and stimulates the formation of alveoli (sac-like structures which store milk) and milk secretion.
(B) Prolactin regulates the growth of the mammary glands and formation of milk in them.
(C) Mucus in the digestive tract helps in lubricating and adhering the masticated food particles into a bolus.
(D) Digestive enzymes in small intestine such as chymotrypsinogen, amylases, lipases, and nucleases. Trypsinogen is activated by an enzyme, enterokinase, secreted by the intestinal mucosa into active trypsin, which in turn activates the other enzymes in the pancreatic juice.
So the correct option is milk.

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