Best material to study mitosis is

Options

A. anther
B. root tip
C. leaf tip
D. ovary

Explanation

To determine the best material to study mitosis, we need to analyze the options provided: Anther, Root tip, Leaf tip, and Ovary.

### Step-by-Step Solution:

1. **Understanding Mitosis**: Mitosis is a process of cell division that results in two identical daughter cells. It is crucial for growth, development, and tissue repair in organisms.

2. **Identifying Active Growth Areas**: In plants, mitosis occurs in regions where there is active growth. These areas are typically found in meristematic tissues, which are regions of undifferentiated cells capable of division.

3. **Analyzing Each Option**:
- **A. Anther**: Anthers are part of the flower and are involved in the production of pollen. While they do undergo cell division, they are not primarily associated with active growth.
- **B. Root tip**: The root tip is a region of active growth in plants. It contains meristematic tissue where cells are constantly dividing, making it an ideal location to study mitosis.
- **C. Leaf tip**: Leaf tips do have some growth, but they are not as actively dividing as root tips.
- **D. Ovary**: The ovary is involved in reproduction and may undergo cell division, but it is not the primary site for studying mitosis in terms of growth.

4. **Conclusion**: Among the options, the root tip is the best material to study mitosis due to its high rate of cell division and active growth.

### Final Answer:
The best material to study mitosis is **B. Root tip**.

---