Which of the following specific structural statements clearly and fundamentally differentiates the c β Biomolecules Chemistry Question
Question
Which of the following specific structural statements clearly and fundamentally differentiates the chemical architecture of DNA from that of RNA?
Answer: B
π‘ Solution & Explanation
Both nucleic acids possess aldopentose sugars. RNA natively utilizes $\beta$ - $D$ -ribose, while DNA strictly incorporates $\beta$ - $D$ -2-deoxyribose, which structurally differs solely by the complete absence of the oxygen atom (and thus the $-OH$ group) specifically at the $2'$ carbon.
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