Meiosis does not occur in

Options

A. asexually reproducing diploid individuals
B. sexually reproducing haploid individuals
C. sexually reproducing diploid individuals
D. all of these.

Explanation

**Step-by-Step Solution:**

1. **Understanding Meiosis:**
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells from one diploid cell. It is essential for sexual reproduction as it produces gametes (sperm and eggs).

2. **Types of Cell Division:**
- There are two main types of cell division: meiosis and mitosis.
- **Mitosis** is equational division, where the chromosome number remains the same.
- **Meiosis** is a reductional division, where the chromosome number is halved.

3. **Identifying the Context:**
- The question asks where meiosis does not occur. We need to analyze the options provided.

4. **Analyzing the Options:**
- **A. Asexually reproducing diploid individuals:** Meiosis does not occur here because these organisms reproduce without the formation of gametes. Examples include bacteria and archaea.
- **B. Sexually reproducing haploid individuals:** Meiosis can occur here as haploid individuals can produce gametes.
- **C. Sexually reproducing diploid individuals:** Meiosis occurs here as well since diploid organisms undergo meiosis to produce gametes.
- **D. All of these:** This option suggests that meiosis does not occur in any of the mentioned categories, which is incorrect.

5. **Conclusion:**
- The correct answer is **A. Asexually reproducing diploid individuals**, as meiosis does not occur in these organisms.