Read the following statements regarding the endocrine function of the human ovary: (I) Estrogen is synthesised and secreted mainly by the growing ovarian follicles. (II) After ovulation, the ruptured follicle is converted into the corpus luteum, which secretes mainly estrogen. (III) Progesterone supports pregnancy and stimulates the formation of alveoli in the mammary glands. (IV) Estrogen and progesterone are peptid

Step-by-step solution

Statement (I) is correct as estrogen is synthesised and secreted mainly by the growing ovarian follicles. Statement (II) is incorrect because after ovulation, the ruptured follicle is converted into the corpus luteum, which secretes mainly progesterone, not estrogen. Statement (III) is correct as progesterone supports pregnancy and acts on the mammary glands to stimulate the formation of alveoli (sac-like structures which store milk) and milk secretion. Statement (IV) is incorrect because estrogen and progesterone