Question

Ribose sugar is not a component of

• A. AMP
• B. ATP
• C. DNA
• D. RNA

Answer 1

Answer: (C)

RNA contains ribose sugar. It is a five carbon sugar. The molecular formula is C${}_5$H${}_{10}$O${}_5$. It is a monosaccharide. DNA has deoxyribose sugar. Deoxyribose sugar has hydrogen at second carbon. The sugar is linked to nitrogenous base at the first carbon by glycosidic bond. It is a pentose sugar having molecular formula of C${}_5$H${}_{10}$O${}_4$.

So, the correct answer is option C.