Correct option is B
Explanation-
Mullerian-inhibiting substance (MIS), also called Anti-Mullerian Hormone (AMH). It is part of the TGF-β (Transforming Growth Factor-beta) family. It plays a crucial role in male sexual differentiation. During embryonic development in males, the Sertoli cells (found in the seminiferous tubules of the testes) secrete MIS/AMH. This hormone induces apoptosis in the Mullerian ducts, preventing the development of female internal genital structures like the uterus and fallopian tubes.
Incorrect Options-
Option A - Leydig cells – These secrete testosterone, not MIS. Testosterone supports the development of Wolffian ducts (male internal genitalia), not the regression of Mullerian ducts.
Option C - Corpus luteal cells – These are part of the female ovary, responsible for producing progesterone during the menstrual cycle, and have no role in secreting MIS.
Option D - Placental cells – The placenta secretes hormones like hCG, progesterone, and estrogen, but not MIS.
So, the correct answer is option B - Sertoli cells
