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 Terms:**
- **Meristems:** These are regions in plants where cells actively divide and are undifferentiated. They are responsible for growth.
- **Differentiation:** This is the process by which cells develop into different types of cells with specific functions (e.g., xylem, phloem).

2. **Identify the Process of Differentiation:**
- When meristematic cells divide, they can differentiate into specialized cells that form various tissues in plants. This process is known as differentiation.

3. **Explore the Concept of Regaining Division Capacity:**
- After differentiation, some cells may lose their ability to divide. However, under certain conditions, these differentiated cells can regain their ability to divide. This phenomenon is known as **de-differentiation**.

4. **Differentiate Between Related Terms:**
- **De-differentiation:** This is the process where differentiated cells revert to a meristematic state, regaining the ability to divide.
- **Re-differentiation:** This occurs when de-differentiated cells differentiate again into specialized cells.
- **Totipotency:** This is the ability of a single cell to develop into a whole plant, which involves both de-differentiation and re-differentiation.

5. **Conclude with the Correct Answer:**
- Based on the understanding of these terms, the answer to the question is that the cells derived from meristems differentiate and regain the capacity to divide by a phenomenon called **de-differentiation**.

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