A: Theory of biogenesis explains that life arises from pre-existing life.
R: Louis Pasteur finally disapproved the theory of spontaneous generation of life.

Options

A. If both Assertion `&` Reason are true and the reason is the correct explanation of the assertion. Then mark (1)
B. If both Assertion `&` Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are falses statements, then mark (4)

Answer

To solve the question, we need to analyze both the assertion (A) and the reason (R) provided:

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that the Theory of Biogenesis explains that life arises from pre-existing life.
- This theory was proposed by several scientists, including Francesco Redi, Lazzaro Spallanzani, and Louis Pasteur.
- The key idea is that life does not spontaneously generate from non-living matter but comes from existing living organisms.

2. **Understanding the Reason (R)**:
- The reason states that Louis Pasteur disapproved the theory of spontaneous generation of life.
- Spontaneous generation is the idea that life can arise from non-living matter, a belief held before the 17th century.
- Louis Pasteur conducted the famous swan neck flask experiment in the 1860s, which demonstrated that microorganisms in the air were responsible for contamination and that life could not arise spontaneously.

3. **Evaluating the Correctness of A and R**:
- Both the assertion and the reason are correct statements.
- The assertion accurately describes the Theory of Biogenesis.
- The reason correctly explains how Pasteur's work discredited the theory of spontaneous generation.

4. **Determining the Relationship Between A and R**:
- Although both statements are correct, the reason does not serve as the correct explanation for the assertion.
- The assertion is about the origin of life (biogenesis), while the reason discusses the disproof of spontaneous generation, which is a different concept.

5. **Conclusion**:
- Since both statements are correct but the reason does not explain the assertion, the correct answer is that both A and R are true, but R is not the correct explanation of A.

### Final Answer:
Both A and R are true, but R is not the correct explanation of A.

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