Assertion :- Cell growth results into division
Reason :- Cell growth leads to change in nucleocytoplasmic ratio.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion:**
- The assertion states that "Cell growth results into division." This means that as a cell increases in size, it eventually undergoes division.

2. **Understanding the Reason:**
- The reason provided is that "Cell growth leads to change in nucleocytoplasmic ratio." This indicates that as the cell grows, the ratio of the nucleus size to the cytoplasm size changes.

3. **Analyzing Cell Growth:**
- During cell growth, the cytoplasm increases in volume while the nucleus remains relatively the same size. This leads to an imbalance in the nucleocytoplasmic ratio (N/C ratio).

4. **Impact of N/C Ratio on Cell Division:**
- A decreased N/C ratio means that the nucleus cannot effectively control the increased cytoplasm. As a result, the cell must divide to restore a favorable N/C ratio.

5. **Conclusion:**
- Since the assertion is true (cell growth does lead to division) and the reason is also true (cell growth changes the N/C ratio), and the reason correctly explains the assertion, we conclude that both statements are true and the reason is the correct explanation of the assertion.

6. **Final Answer:**
- Both the assertion and reason are true, and the reason is the correct explanation for the assertion.

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