Natural Science CLEP Prep Practice Exam

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Prepare for the Natural Science CLEP Exam with our comprehensive quiz that includes multiple choice questions and detailed explanations. Boost your understanding and confidence to ace the test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the structure of DNA composed of?

Amino acids
Polysaccharides
Nucleotides
Proteins

The correct answer is: Nucleotides

The structure of DNA is composed of nucleotides, specifically deoxyribonucleotides. These are made up of a sugar, a phosphate group, and a nitrogenous base. Amino acids are the building blocks of proteins and are not directly involved in the structure of DNA. Polysaccharides are carbohydrates and do not make up the structure of DNA. While proteins do play a role in DNA structure, they are not the primary components.