Which monosaccharide is a component of $\mathrm{RNA}$?

• A. $\mathrm{Ribose}$
• B. $\mathrm{Fructose}$
• C. $\mathrm{Glucose}$
• D. $\mathrm{Deoxyribose}$

Answer: (A)

Verified step by step guidance

1. Understand the structure of RNA: RNA, or ribonucleic acid, is a nucleic acid that plays a crucial role in coding, decoding, regulation, and expression of genes.
2. Identify the components of RNA: RNA is composed of a sugar, a phosphate group, and nitrogenous bases. The sugar component is a pentose sugar.
3. Recognize the types of pentose sugars: The two main pentose sugars relevant to nucleic acids are ribose and deoxyribose.
4. Differentiate between ribose and deoxyribose: Ribose is the sugar found in RNA, while deoxyribose is found in DNA. The key difference is that ribose has an -OH group on the 2' carbon, whereas deoxyribose has an -H instead.
5. Conclude which sugar is part of RNA: Based on the structure and function of RNA, ribose is the monosaccharide component of RNA.