Which of the following cells during gametogenesis is normally diploid?

Options

A. Spermatid
B. Spermatogonia
C. Secondary polar body
D. Primary polar body

Answer

To solve the question "Which of the following cells during gametogenesis is normally diploid?", we need to analyze each option provided:

1. **Understanding Gametogenesis**: Gametogenesis is the process by which gametes (sperm and eggs) are produced. In humans, this involves the formation of sperm in males and eggs in females.

2. **Analyzing the Options**:
- **Option A: Spermatozoa** - These are the mature sperm cells and are haploid (n), meaning they contain half the number of chromosomes.
- **Option B: Spermatogonia** - These are the sperm mother cells and are diploid (2n). They undergo mitotic division to produce primary spermatocytes, which are also diploid.
- **Option C: Secondary Polar Body** - This is produced during oogenesis and is haploid (n).
- **Option D: Primary Polar Body** - This is also produced during oogenesis and is haploid (n).

3. **Conclusion**: After analyzing the options, we find that the only diploid cell during gametogenesis is **spermatogonia**.

Thus, the correct answer is **Option B: Spermatogonia**.