Which of the following statements is correct regarding DNA and RNA?

Options

A. DNA is highly reactive
B. RNA is not catalytic
C. RNA cannot be easily degraded
D. DNA Is better genetic material than RNA

Answer

To determine which statement is correct regarding DNA and RNA, let's analyze each statement step by step.

1. **Statement Analysis**:
- **Statement 1**: "DNA is highly reactive."
- This statement is incorrect. DNA is relatively stable due to its double-helix structure and the presence of deoxyribose sugar, which lacks a hydroxyl (OH) group at the 2' position. In contrast, RNA is more reactive because it contains ribose sugar, which has an OH group at the 2' position, making it more prone to hydrolysis.

- **Statement 2**: "RNA is not catalytic."
- This statement is also incorrect. RNA can have catalytic properties; certain RNA molecules, known as ribozymes, can catalyze biochemical reactions. Additionally, RNA plays a crucial role in gene expression and regulation.

- **Statement 3**: "RNA cannot be easily degraded."
- This statement is misleading. RNA is actually more susceptible to degradation than DNA due to the presence of the hydroxyl group on the ribose sugar, which makes it more reactive and less stable. Therefore, RNA can be easily degraded by ribonucleases.

- **Statement 4**: "DNA is better genetic material than RNA."
- This statement is correct. DNA is considered the better genetic material because it is more stable, has a double-stranded structure that provides protection against damage, and contains thymine instead of uracil, which contributes to its stability. Additionally, the double helix structure of DNA allows for efficient storage and transmission of genetic information.

2. **Conclusion**:
- After analyzing all the statements, the correct statement regarding DNA and RNA is: "DNA is better genetic material than RNA."

**Final Answer**: The correct statement is: "DNA is better genetic material than RNA."

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