Washington Barber License Practice Exam

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Prepare for the Washington Barber License Exam with this essential quiz. Challenge yourself with multiple-choice questions designed to enhance your knowledge and readiness for the licensing test. Get the confidence you need to excel in your barber career!

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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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Amino acids are joined together by end bonds form a _____________.

  1. DNA Helix

  2. Polypeptide Chain

  3. Fatty Acid

  4. Carbohydrate Chain

The correct answer is: Polypeptide Chain

Amino acids are the building blocks of proteins and are joined together by peptide bonds to form a polypeptide chain. Option A, DNA helix, refers to the structure of DNA, not the joining of amino acids. Option C, fatty acid, and Option D, carbohydrate chain, are not involved in forming proteins. Proteins are made up of one or more polypeptide chains, making Option B the correct choice.

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