Question

Study the following and choose the correct combinations:

• A. II, IV
• B. I, III
• C. I, II
• D. III, IV

Hint:

Match hormones with their primary target/action: LH → ovulation, Leydig → testosterone, Sertoli → FSH-mediated support of spermiation.

Answer 1

The Correct Option is A

• I: Sertoli cells are stimulated mainly by FSH and are involved in spermiation — the pairing “Sertoli cells — Luteinising hormone” is incorrect (should be FSH). So I is not a correct full combination.
• II: Leydig cells produce testosterone which brings about secondary sexual characters in males — II is correct.
• III: Corpus luteum mainly secretes progesterone (and some estrogen) and is not involved in spermiogenesis — III is incorrect.
• IV: Luteinising hormone acts on a mature follicle (Graafian follicle) to induce ovulation — IV is correct.
• Therefore the correct combinations are II, IV — option (1).