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DNA is composed of repeating units of

1. Ribonucleosides
2. Deoxyribonucleosides
3. Ribonucleotides
4. Deoxyribonucleotides

Correct answer: Deoxyribonucleotides

Solution

DNA is a polymer made of nucleotide monomers. Because DNA contains deoxyribose sugar rather than ribose, its repeating units are deoxyribonucleotides.

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