Arkansas State Barber Practice Exam

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What are chains of joined amino acids known as?

  1. Dipeptides

  2. Polypeptide chains

  3. Amino chains

  4. Carbon chains

The correct answer is: Polypeptide chains

Chains of joined amino acids are known as polypeptide chains. Option A is incorrect because dipeptides only have two amino acids. Option C is incorrect because "amino chains" is not a commonly used term in biochemistry. Option D is incorrect because carbon chains can refer to any chain of carbon molecules, not specifically to chains of amino acids. Polypeptide chains are made by the joining of many amino acids, through peptide bonds, to form a long chain. This is why polypeptide chains are the most accurate term to describe chains of amino acids.

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