permatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following :

A. Spermatogonia always undergo meiotic cell division.
B. Primary spermatocytes divide mitotically to produce secondary spermatocytes.
C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids.
D. Spermatids produce spermatozoa through mitosis.
E. Spermatids transform into spermatozoa by spermiogenesis.

Choose the correct answer from the options given below :

**Answer:** The correct statements are **C** and **E only**.

To determine which statements are true, recall the basic sequence of events in spermatogenesis:

1. **Spermatogonia** (stem cells) divide **mitotically** to maintain the stem cell pool and to produce primary spermatocytes.
2. **Primary spermatocytes** undergo the **first meiotic division (Meiosis I)**, producing **secondary spermatocytes** (each haploid with duplicated chromosomes).
3. **Secondary spermatocytes** quickly undergo the **second meiotic division (Meiosis II)**, yielding **haploid spermatids**.
4. **Spermatids** mature into **spermatozoa** through a differentiation process called **spermiogenesis** (no cell division occurs).

Now evaluate each statement:

A. Spermatogonia always undergo meiotic cell division.
- Incorrect. Spermatogonia divide **mitotically**, not meiotically. Only the cells derived from them (primary spermatocytes) enter meiosis.

B. Primary spermatocytes divide mitotically to produce secondary spermatocytes.
- Incorrect. Primary spermatocytes undergo **meiotic** division (Meiosis I), not mitosis, to produce secondary spermatocytes.

C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids.
- Correct. The secondary spermatocytes complete **Meiosis II**, resulting in **haploid spermatids**.

D. Spermatids produce spermatozoa through mitosis.
- Incorrect. Spermatids do **not** divide; they transform into spermatozoa by **differentiation**, not by mitosis.

E. Spermatids transform into spermatozoa by spermiogenesis.
- Correct. The process that remodels spermatids into mature spermatozoa is called **spermiogenesis**.

Since only statements **C** and **E** are true, the answer “C and E only��� is the correct choice.