Which statement describes the sugar in DNA?

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Multiple Choice

Which statement describes the sugar in DNA?

Explanation:
DNA uses deoxyribose, a five-carbon sugar in its backbone. The name “deoxyribose” means it lacks an oxygen atom at the 2′ position (it has hydrogen there), which is a key difference from the sugar in RNA, ribose. That missing oxygen helps give DNA its stability and shape as a long, stable double helix. Glucose and lactose are other types of sugars not used in the DNA backbone—glucose is a simple sugar mainly for energy, and lactose is a disaccharide found in milk. So the sugar in DNA is deoxyribose.

DNA uses deoxyribose, a five-carbon sugar in its backbone. The name “deoxyribose” means it lacks an oxygen atom at the 2′ position (it has hydrogen there), which is a key difference from the sugar in RNA, ribose. That missing oxygen helps give DNA its stability and shape as a long, stable double helix. Glucose and lactose are other types of sugars not used in the DNA backbone—glucose is a simple sugar mainly for energy, and lactose is a disaccharide found in milk. So the sugar in DNA is deoxyribose.

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