The cells derived from meristems differentiate and regain the capacity of divide by a phenomenon called

Options

A. Differentiation
B. Dedifferentiation
C. Redifferentiation
D. Totipotency

Answer

To solve the question, "The cells derived from meristems differentiate and regain the capacity to divide by a phenomenon called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking about a specific phenomenon that allows cells derived from meristems to differentiate and then regain their ability to divide.

2. **Identify Key Terms**:
- **Meristems**: These are regions in plants where cells are undifferentiated and can divide.
- **Differentiation**: This is the process by which cells become specialized in structure and function.
- **De-differentiation**: This refers to the process where differentiated cells revert to a less specialized state, regaining the ability to divide.
- **Re-differentiation**: This is when de-differentiated cells differentiate again into specialized cells.
- **Totipotency**: This is the ability of a single cell to divide and develop into a complete organism.

3. **Evaluate the Options**:
- **Differentiation**: This is not the correct answer as it does not involve regaining the ability to divide.
- **De-differentiation**: This is the process where differentiated cells regain the ability to divide, making it a strong candidate for the correct answer.
- **Re-differentiation**: This involves the loss of dividing capacity, so it cannot be the correct answer.
- **Totipotency**: This refers to the potential of a single cell to develop into different cell types, but it does not specifically address the regaining of division capacity from differentiated cells.

4. **Conclusion**: Based on the evaluation, the correct answer is **De-differentiation** as it describes the phenomenon where differentiated cells regain the capacity to divide.

### Final Answer:
The phenomenon is called **De-differentiation**.

---