AP®BiologyCollege BoardExam QuestionsUnit 1: Chemistry of LifeBiological Macromolecules

Biological Macromolecules (College Board AP® Biology)

Exam Questions

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Researchers produced a particular type of reactive molecule, known as a radical, that can interact with a protein's amino acids at a molecular level. Under certain conditions, the radical molecules selectively react to break carbon-carbon bonds within an amino acid, meaning that protein editing can be achieved. Which of the following best predicts the location of where the radicle interacts?

  • Radicles interact with the peptide bond of an amino acid

  • Radicles interact with the R-group of an amino acid

  • Radicles interact with the amino group of an amino acid

  • Radicles interact with the peptide bond of a di-peptide

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