Meiosis is best observed in dividing

Options

A. cells of apical meristem
B. cells of lateral meristem
C. microspores and anther wall
D. microsporocytes

Explanation

To determine where meiosis is best observed, we can analyze the options provided:

1. **Cells of Apical Meristem**:
- These cells are responsible for the growth of the plant in length. They primarily undergo mitosis, not meiosis, as they are involved in producing new cells for growth rather than gametes.

2. **Cells of Lateral Meristem**:
- Similar to apical meristem cells, lateral meristem cells are involved in the growth of the plant in thickness. They also divide by mitosis, maintaining the same ploidy level, and do not participate in gamete formation.

3. **Microspore and Anther Ball**:
- Microspores are produced from microsporocytes through meiosis, but the term "anther ball" is not specific to meiosis. Microspores undergo mitosis to form pollen grains, so this option does not directly indicate meiosis.

4. **Microsporocytes**:
- Microsporocytes, also known as microspore mother cells, are diploid (2n) cells that undergo meiosis to produce haploid (n) microspores. This is the key process where meiosis occurs, as it results in the formation of gametes.

Based on this analysis, the best observation of meiosis occurs in **microsporocytes**.

**Final Answer**: The correct option is **D. Microsporocytes**.