Q. Which hormone helps in the secretion of milk in the mammary glands?

A
Sematotropin
B
Prolactin
C
Melatonin
D
Serotonin
Solution:

Prolactin is a protein best known for its role in enabling mammals (and birds), usually females, to produce milk. It is influential in over 300 separate processes in various vertebrates, including humans. Prolactin is secreted from the pituitary gland in response to eating, mating, estrogen treatment, ovulation and nursing.

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