Which molecule contains deoxyribose?

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Study for the DNA History, Replication, and Protein Synthesis Test. Engage with flashcards and multiple choice questions, each with hints and explanations. Prepare for success!

Multiple Choice

Which molecule contains deoxyribose?

Explanation:
Deoxyribose is the five-carbon sugar used in DNA. It differs from the sugar in RNA by lacking an oxygen atom at the 2' position (the 2' carbon has only hydrogen instead of a hydroxyl group). This small change makes DNA’s backbone more chemically stable and favors a stable double-stranded helical structure. RNA uses ribose, which has a hydroxyl group at the 2' position, giving it different chemical properties and structures. So, the molecule that contains deoxyribose is DNA; RNA does not.

Deoxyribose is the five-carbon sugar used in DNA. It differs from the sugar in RNA by lacking an oxygen atom at the 2' position (the 2' carbon has only hydrogen instead of a hydroxyl group). This small change makes DNA’s backbone more chemically stable and favors a stable double-stranded helical structure. RNA uses ribose, which has a hydroxyl group at the 2' position, giving it different chemical properties and structures. So, the molecule that contains deoxyribose is DNA; RNA does not.

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