What type of sugar is found in DNA?

• A. Ribose
• B. Fructose
• C. Glucose
• D. 2-deoxyribose

Answer: (D)

Verified step by step guidance

1. Understand that DNA (deoxyribonucleic acid) is composed of nucleotides, each containing a sugar, a phosphate group, and a nitrogenous base.
2. Recall that the sugar in DNA is a five-carbon sugar, also known as a pentose sugar.
3. Differentiate between the sugars found in nucleic acids: RNA contains ribose, while DNA contains a modified sugar called 2-deoxyribose.
4. Recognize that 2-deoxyribose differs from ribose by lacking an oxygen atom on the 2' carbon, which is why it is called 'deoxy'.
5. Conclude that the sugar found in DNA is 2-deoxyribose, not ribose, fructose, or glucose.