Match the following columns and select the correct option. Column-I (a) Placenta (b) Zona pellucida (c) Bulbourethral Glands (d) Leydig cells Column-II (i) Androgens (ii) Human Chorionic Gonadotropin (HCG) (iii) Layer of the ovum (iv) Lubrication of the penis (NEET 2020)
Answer: (B) a-ii, b-iii, c-iv, d-i. Answer: (B) a-ii, b-iii, c-iv, d-i Solution: NCERT states the placenta produces human chorionic gonadotropin (hCG) [a-ii]; the secondary oocyte forms the zona pellucida, a layer surrounding the ovum [b-iii]; the secretions of the bulbourethral glands help in lubrication of the penis [c-iv]; and Leydig cells secrete androgens [d-i].
- A.a-iii, b-ii, c-iv, d-i
- B.a-ii, b-iii, c-iv, d-i✓
- C.a-iv, b-iii, c-i, d-ii
- D.a-i, b-iv, c-ii, d-iii
Correct Answer
(B) a-ii, b-iii, c-iv, d-i
Solution & Explanation
Answer: (B) a-ii, b-iii, c-iv, d-i Solution: NCERT states the placenta produces human chorionic gonadotropin (hCG) [a-ii]; the secondary oocyte forms the zona pellucida, a layer surrounding the ovum [b-iii]; the secretions of the bulbourethral glands help in lubrication of the penis [c-iv]; and Leydig cells secrete androgens [d-i]. Answer is NCERT-grounded as the 2020 paper had no printed biology key. NCERT Reference: Ch 2, p.28, line 10 — "in the lubrication of the penis."