Arrange the following spermatogenic cells in correct sequence of spermatogenesis.
(A) Spermatids
(B) Spermatogonium
(C) Secondary Spermatocytes
(D) Primary Spermatocytes
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (B), (D), (C), (A)
(B) Spermatogonium — first. The diploid sperm mother cells multiply by mitosis on the inner wall of the seminiferous tubules.
(D) Primary spermatocytes — second. Some spermatogonia grow and become primary spermatocytes (2n = 46), which start meiosis.
(C) Secondary spermatocytes — third. The first meiotic division gives two haploid secondary spermatocytes (n = 23) from each primary spermatocyte.
(A) Spermatids — last. The second meiotic division gives four haploid spermatids, which later change into sperms (spermiogenesis).
Note: A similar question was also asked in CUET (UG) 2026 on 26-05-2026 (Slot 2).
NCERT Extract:
Gametogenesis – “… In testis, the immature male germ cells (spermatogonia) produce sperms by spermatogenesis that begins at puberty. 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).”
