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What composes the backbone, or side pieces, of the DNA molecule?
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What composes the backbone, or side pieces, of the DNA molecule?

User Woloski
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A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

User Panupan
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