Genetic material in most of the organisms

Options

A. DNA
B. RNA
C. Both
D. None

Answer

**Step-by-Step Solution:**

1. **Understanding Genetic Material**: Genetic material refers to the molecules that carry the genetic information necessary for the growth, development, functioning, and reproduction of organisms. The two primary types of genetic material are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

2. **Identifying the Main Genetic Material**: In most organisms, DNA serves as the primary genetic material. This is because DNA is more stable and less reactive than RNA, making it a more reliable carrier of genetic information.

3. **Reasons for DNA as Genetic Material**:
- **Structural Stability**: DNA has a double-helix structure that provides stability, while RNA is typically single-stranded and more prone to degradation.
- **Chemical Stability**: DNA contains deoxyribose sugar, which lacks the 2' hydroxyl group found in ribose (the sugar in RNA). This absence makes DNA less reactive and more chemically stable than RNA.
- **Proofreading Capability**: DNA has mechanisms for proofreading and repairing errors during replication, which enhances its reliability as genetic material.

4. **Exceptions**: While DNA is the genetic material in most organisms, there are exceptions. Some viruses, particularly retroviruses, use RNA as their genetic material. However, these cases are not the norm.

5. **Conclusion**: Based on the above points, the correct answer to the question "Genetic material in most of the organisms" is DNA.

**Final Answer**: DNA

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