Which of the following tissue/s can regain the power of multiplication?

Options

A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Parenchyma and Collenchyma

Answer

To answer the question, "Which of the following tissue/s can regain the power of multiplication?", we will analyze the different types of tissues mentioned in the options and determine their ability to undergo multiplication.

### Step-by-Step Solution:

1. **Understanding Tissue Types**:
- There are two main categories of plant tissues: meristematic tissues and permanent tissues.
- Meristematic tissues are capable of continuous division, while permanent tissues generally do not divide once they have differentiated.

2. **Identifying Meristematic Tissues**:
- Primary meristems, such as apical meristem and intercalary meristem, are present from the embryonic stage and can continuously divide.
- These tissues are responsible for the growth of the plant.

3. **Differentiation Process**:
- When cells of meristematic tissues differentiate, they lose their ability to divide and become permanent tissues (e.g., parenchyma, collenchyma, sclerenchyma).
- Permanent tissues are typically not capable of multiplication.

4. **Regaining Multiplication Power**:
- Some permanent tissues can regain their ability to divide under certain conditions through a process called de-differentiation.
- Parenchyma and collenchyma are examples of permanent tissues that can de-differentiate and re-enter the cell cycle, thus regaining their power of multiplication.

5. **Evaluating the Options**:
- If the options include parenchyma and collenchyma, both are correct as they can regain the power of multiplication.
- Sclerenchyma, on the other hand, does not have this capability as it is a permanent tissue that remains differentiated.

6. **Conclusion**:
- The correct answer is that both parenchyma and collenchyma can regain the power of multiplication, making the option that includes both of them the best choice.

### Final Answer:
The tissues that can regain the power of multiplication are **parenchyma and collenchyma**.