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Question

To yield more milk, cow is injected with

A
Sorbitol
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B
Prolactin
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C
Gonadotrophs
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D
Stilbestrol
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Solution

The correct option is B Prolactin
Prolactin (also called as luteotrophic) hormone is associated with lactation (secretion of milk from the mammary gland). It is a hormone released by the pituitary gland that stimulates breast development and milk production in women. Therefore, to yield more milk cow is injected with prolactin hormone.
Sorbitol is a sweetener found in some fruits (like apple, pear etc.).
Gonadotroph is a type of basophil in the adenohypophysis (anterior pituitary gland) whose granules secrete FSH (follicle-stimulating hormone) and LH (luteinizing hormone).
Stilbesterol is synthetic estrogen used in hormone therapy, as a post-coital contraceptive, and as a growth-promoting agent for livestock.
Therefore, the correct answer is option B.

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