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DNA and RNA are both polymers of nucleotides. DNA has deoxyribose sugar while RNA has ribose sugar. DNA has thymine while RNA has uracil in place of thymine.

1. DNA and RNA are polymers of amino acids.
2. DNA and RNA are polymers of nucleotides.
3. DNA and RNA are polymers of fatty acids.
4. DNA and RNA are polymers of carbohydrates.

Correct answer: DNA and RNA are polymers of nucleotides.

Solution

DNA and RNA are both nucleic acids, and nucleic acids are polymers made from nucleotide monomers. The sugar and base differences distinguish DNA from RNA, but both are still nucleotide chains.

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