Assertion:- Centrioles are essential for mintenance of confinuity of cells in animals.
Reason:- Centrioles give rise to spindle apparatus durring division.

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 "Centrioles are essential for the maintenance of continuity of cells in animals." This means that centrioles play a crucial role in ensuring that cells can continue to exist and replicate.

2. **Understanding the Reason**: The reason given is that "Centrioles give rise to the spindle apparatus during division." This indicates that during cell division, centrioles are responsible for forming the spindle apparatus, which is essential for the proper segregation of chromosomes.

3. **Role of Centrioles**: Centrioles are cylindrical structures found in the centrosome of animal cells. They are arranged perpendicularly to each other and are involved in organizing microtubules that form the spindle apparatus during cell division.

4. **Connection Between Assertion and Reason**: The assertion is true because cell division is necessary for the continuity of life in multicellular organisms. The reason is also true as the spindle apparatus, which is crucial for the separation of chromosomes during cell division, originates from the centrioles.

5. **Conclusion**: Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, we can conclude that the answer is that both the assertion and reason are true, and the reason is the correct explanation for the assertion.

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

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