Answer
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Step 1I'll solve this problem by explaining the structure of DNA molecules.
Step 2: DNA Backbone Composition
The sides (or backbone) of a DNA molecule are made up of alternating sugar and phosphate molecules. Specifically: - The sugar is deoxyribose (a 5 -carbon sugar) - The phosphate groups connect these sugar molecules
Final Answer
The sides of a DNA molecule are made up of alternating deoxyribose sugar and phosphate molecules, connected by phosphodiester bonds, forming a negatively charged, stable backbone.
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