Lateral meristems that are formed by dedifferentiation are

Options

A. Cork cambium
B. Inter fascicular cambium
C. Fascicular cambium
D. 1 & 2

Answer

To answer the question regarding lateral meristems that are formed by dedifferentiation, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Lateral Meristems**:
- Lateral meristems are types of meristematic tissues that contribute to the secondary growth of plants. They are responsible for the thickening of stems and roots.

2. **Dedifferentiation Process**:
- Dedifferentiation refers to the process where mature, specialized cells revert back to a meristematic state. This allows them to divide and form new tissues.

3. **Types of Lateral Meristems**:
- The primary types of lateral meristems formed by dedifferentiation are:
- **Cork Cambium**: This lateral meristem produces cork cells, which form the outer protective layer of the plant.
- **Interfascicular Cambium**: This is located between the vascular bundles and contributes to the formation of secondary xylem and phloem.

4. **Conclusion**:
- Therefore, lateral meristems that are formed by dedifferentiation include both cork cambium and interfascicular cambium.

5. **Final Answer**:
- The correct answer is that lateral meristems formed by dedifferentiation are **cork cambium and interfascicular cambium**.