Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

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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How many bases make up a codon?

The correct answer is: 3

A codon is a sequence of three bases on a messenger RNA (mRNA) that corresponds to a specific amino acid. This means that three bases make up a single codon, as each codon represents one amino acid. Therefore, choices A, B, and D are incorrect as they do not provide the necessary sequence of bases to form a complete codon. Choice C, with the correct answer of three bases, is the only option that accurately reflects the number of bases needed to make up a codon. Choosing any other option would result in an incomplete codon and an incorrect representation of the amino acid sequence.