In the context of DNA structure, what are the monomers of DNA?

• A. Fatty acids
• B. Nucleotides (deoxyribonucleotides)
• C. Monosaccharides (simple sugars)
• D. Amino acids

Answer: (B)

Verified step by step guidance

1. Understand that DNA is a polymer, which means it is made up of repeating smaller units called monomers.
2. Recall that the structure of DNA consists of a sugar-phosphate backbone and nitrogenous bases attached to the sugar.
3. Identify the monomer unit of DNA as a nucleotide, which is composed of three parts: a phosphate group, a deoxyribose sugar, and a nitrogenous base.
4. Recognize that these nucleotides are specifically called deoxyribonucleotides because the sugar in DNA is deoxyribose.
5. Conclude that the monomers of DNA are nucleotides (deoxyribonucleotides), not fatty acids, monosaccharides, or amino acids.