Consider the exact chemical structure and molecular formula of - -2-deoxyribose, which serves as the fundamental pentose sugar unit utilized in the backbone architecture of all DNA molecules. How many

Question

Consider the exact chemical structure and molecular formula of $\beta$ - $D$ -2-deoxyribose, which serves as the fundamental pentose sugar unit utilized in the backbone architecture of all DNA molecules. How many total oxygen atoms are chemically present in a single, independent molecule of this specific sugar?

Prashant Kotian · Accepted Answer

Correct answer: 4. The pentose sugar Ribose has the molecular formula . Deoxyribose, specifically 2-deoxyribose, differs exactly by the absence of one oxygen atom (loss of the hydroxyl group at the carbon). Therefore, its exact formula is , possessing oxygen atoms.

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