Question detail
Which of the following correctly describes the sugar component of DNA nucleotides?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Amino acids, proteins and DNA (A-level only)
Question
- A. Ribose
- B. Deoxyribose
- C. Glucose
- D. Fructose
Answer
Deoxyribose
Explanation
The sugar in DNA nucleotides is deoxyribose, which differs from ribose found in RNA by lacking one oxygen atom. This is crucial for the structural integrity of DNA.
Common mistake
Confusing DNA Nucleotide Components
Students often confuse the components of DNA nucleotides, such as mixing up the sugar and phosphate groups.
Remember that a DNA nucleotide consists of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Clearly label each component when drawing or describing nucleotides.
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