Structurally differentiating RNA from DNA involves examining the core pentose sugar. The fundamental pentose sugar unit utilized exclusively in the backbone of DNA is:

Question

Prashant Kotian · Accepted Answer

Correct answer: C. The core sugar in DNA is -D-2-deoxyribose, which structurally differs from RNA's -D-ribose solely by the complete absence of the hydroxyl () group exactly at the C-2' carbon position.

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