Match List-I with List-IIList-IList-IIStages of SpermatogenesisRelati…

The correct answer is Option (2) → (A) - (II), (B) - (IV), (C) - (I), (D) - (III)

(A) Spermatids — this matches (II) Spermiogenesis. The round spermatids change into sperms by the process of spermiogenesis.

(B) Secondary spermatocytes — this matches (IV) Meiosis-II. The secondary spermatocytes divide by the second meiotic division to form four spermatids.

(C) Spermatogonia — this matches (I) Diploid. Spermatogonia are the diploid (2n) cells that multiply by mitosis. Some of them grow into primary spermatocytes.

(D) Primary spermatocytes — this matches (III) Meiosis-I. Each primary spermatocyte completes the first meiotic division and gives two equal secondary spermatocytes.

Note: Primary spermatocytes are also diploid, so (D) could fit (I) Diploid as well as (III) Meiosis-I. But spermatogonia do not go through meiosis, they divide by mitosis, so (C) cannot take (III). Only Option (2) is consistent with these facts.

NCERT Extract:
Gametogenesis – “… The spermatogonia (sing. spermatogonium) present on the inside wall of seminiferous tubules multiply by mitotic division and increase in numbers. Each spermatogonium is diploid and contains 46 chromosomes. Some of the spermatogonia called primary spermatocytes periodically undergo meiosis. A primary spermatocyte completes the first meiotic division (reduction division) leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each. The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids (Figure 2.5).”
Gametogenesis – “… The spermatids are transformed into spermatozoa (sperms) by the process called spermiogenesis.”