The back bone of RNA is consists of which of the following sugar :-

Options

A. Deoxyribose
B. Ribose
C. Sucrose
D. Maltose

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the sugar that forms the backbone of RNA. It provides four options: deoxyribose, ribose, sucrose, and maltose.

2. **Identifying the Components of RNA**: RNA (Ribonucleic Acid) is a nucleic acid that consists of a sugar, phosphate group, and nitrogenous bases. The backbone of RNA is formed by alternating sugar and phosphate groups.

3. **Recognizing the Type of Sugar in RNA**: The sugar present in RNA is specifically ribose. This is different from DNA (Deoxyribonucleic Acid), which contains deoxyribose.

4. **Eliminating Incorrect Options**:
- **Deoxyribose**: This sugar is found in DNA, not RNA.
- **Sucrose and Maltose**: These are disaccharides and are not involved in the structure of nucleic acids.

5. **Conclusion**: Based on the information, the correct answer is ribose, which is option B.

6. **Final Answer**: The backbone of RNA consists of ribose sugar.

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