DNA contains the sugar ______.

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Study for the DNA Biology Test. Dive into key concepts with multiple choice questions, flashcards, and detailed explanations. Enhance your understanding and prepare confidently for your exam!

Multiple Choice

DNA contains the sugar ______.

Explanation:
DNA uses deoxyribose as the sugar in its backbone. Deoxyribose is a five-carbon sugar that lacks an oxygen atom at the 2' position, giving DNA greater chemical stability for long-term genetic information storage. In contrast, RNA uses ribose, which has a hydroxyl group at the 2' position and is more reactive. The other sugars are glucose and galactose, which are six-carbon sugars mainly used in metabolism, not as the backbone sugar of DNA.

DNA uses deoxyribose as the sugar in its backbone. Deoxyribose is a five-carbon sugar that lacks an oxygen atom at the 2' position, giving DNA greater chemical stability for long-term genetic information storage. In contrast, RNA uses ribose, which has a hydroxyl group at the 2' position and is more reactive. The other sugars are glucose and galactose, which are six-carbon sugars mainly used in metabolism, not as the backbone sugar of DNA.

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