Assertion :- The presence of introns is reminiscent of antiquity & the process of splicing represents the dominance of RNA world.
Reason : The spilt gene arrangement represents an advanced feature of the genome.

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

To solve the assertion and reason question, we will follow these steps:

### Step 1: Analyze the Assertion
The assertion states: "The presence of introns is reminiscent of antiquity & the process of splicing represents the dominance of RNA world."

- **Explanation**: Introns are non-coding sequences found within genes. Their presence suggests that they may have been functional in ancestral organisms, hence the term "reminiscent of antiquity." The process of splicing, where introns are removed from pre-mRNA to form mature mRNA, indicates that RNA played a significant role in early life forms, supporting the idea of an "RNA world."

### Step 2: Analyze the Reason
The reason states: "The split gene arrangement represents an advanced feature of the genome."

- **Explanation**: The split gene arrangement, which includes both introns and exons, is not necessarily an advanced feature. Instead, it is considered an older characteristic that has been retained through evolution. The presence of introns is more indicative of ancestral genomes rather than an advanced state.

### Step 3: Determine the Truth of Assertion and Reason
- **Assertion**: True (the presence of introns does suggest an ancient lineage and splicing is a key process in the RNA world).
- **Reason**: False (the split gene arrangement is not an advanced feature; it reflects an older evolutionary state).

### Step 4: Evaluate the Relationship Between Assertion and Reason
Since the assertion is true and the reason is false, the reason does not provide a correct explanation for the assertion.

### Conclusion
The correct answer is **Option C**: Assertion is true, but the reason is false.

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