Which one of the following causes the mammary glands to enlarge at puberty:
Correct answer: C. Estrogen
- A. Testosterone
- B. Progesterone
- C. Estrogen
- D. Thyroxin
Explanation
Estrogen is the hormone responsible for causing the mammary glands to enlarge at puberty. It promotes the development of female secondary sexual characteristics, including the growth of breast tissue. Therefore, option c is correct.
This question appeared on the KMU Centralized Admission Test 2022 paper, which you can sit online with every answer explained.
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Chemical coordination uses hormones released by endocrine glands and carried in blood to specific target cells. Coverage includes the pituitary, thyroid, pancreas, adrenal glands, ovaries and testes, feedback control, and the contrast between slower, longer-lasting hormonal responses and rapid nervous coordination.
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