Question:
Identify the carbon atom numbered from $C_{1}^{\prime}$ to $C_{5}^{\prime}$ of monosaccharide unit of DNA nucleotide that lacks oxygen from -OH group.
Identify the carbon atom numbered from $C_{1}^{\prime}$ to $C_{5}^{\prime}$ of monosaccharide unit of DNA nucleotide that lacks oxygen from -OH group.
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DNA = 2'-deoxyribose; RNA = ribose.
Updated On: Jun 19, 2026
- $C_{1}^{\prime}$
- $C_{2}^{\prime}$
- $C_{3}^{\prime}$
- $C_{4}^{\prime}$
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The Correct Option is B
Solution and Explanation
Step 1: Concept
DNA contains deoxyribose sugar.
Step 2: Meaning
"Deoxy" indicates the loss of an oxygen atom compared to ribose.
Step 3: Analysis
- In DNA, the hydroxyl group at the second carbon position ($C_2^{\prime}$) is replaced by a hydrogen atom.
Step 4: Conclusion
Hence, the $C_2^{\prime}$ carbon lacks the oxygen. Final Answer: (B)
DNA contains deoxyribose sugar.
Step 2: Meaning
"Deoxy" indicates the loss of an oxygen atom compared to ribose.
Step 3: Analysis
- In DNA, the hydroxyl group at the second carbon position ($C_2^{\prime}$) is replaced by a hydrogen atom.
Step 4: Conclusion
Hence, the $C_2^{\prime}$ carbon lacks the oxygen. Final Answer: (B)
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