Multiple Choice
DNA and RNA are examples of which type of biological macromolecule?
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7. DNA and Chromosome Structure
DNA Structure
Multiple Choice
DNA is made of repeating units called what?
A
Monosaccharides
B
Amino acids
C
Fatty acids
D
Nucleotides
Verified step by step guidance1
Understand that DNA is a polymer, meaning it is made up of many repeating smaller units called monomers.
Recall the types of biological monomers: monosaccharides (sugars), amino acids (building blocks of proteins), fatty acids (components of lipids), and nucleotides (building blocks of nucleic acids).
Recognize that DNA is a type of nucleic acid, so its repeating units must be nucleotides.
Know that each nucleotide in DNA consists of three parts: a sugar (deoxyribose), a phosphate group, and a nitrogenous base.
Conclude that the repeating units that make up DNA are nucleotides, not monosaccharides, amino acids, or fatty acids.
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