Multiple Choice
Which nucleotide is required for glycogen synthesis?
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1. Introduction to Biochemistry
Nucleic Acids
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Which type of sugar is found in the backbone of DNA?
A
Deoxyribose
B
Fructose
C
Glucose
D
Ribose
Verified step by step guidance1
Understand the structure of DNA: DNA is composed of a sugar-phosphate backbone and nitrogenous bases. The sugar in the backbone is crucial for the structure and function of DNA.
Recall the difference between RNA and DNA: RNA contains ribose as its sugar, while DNA contains deoxyribose. Deoxyribose is a modified form of ribose where the hydroxyl group (-OH) on the 2' carbon is replaced by a hydrogen (-H).
Eliminate incorrect options: Fructose and glucose are monosaccharides commonly involved in energy metabolism, not in nucleic acid structure. Ribose is found in RNA, not DNA.
Focus on the correct sugar: Deoxyribose is the sugar specifically found in DNA. Its absence of an -OH group at the 2' carbon makes DNA more chemically stable compared to RNA.
Conclude the reasoning: Based on the structural and functional differences, the sugar found in the backbone of DNA is deoxyribose.
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