The α-helix and β-pleated sheet are examples of which level of protein structure?

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Quizplus · Accepted Answer

The α-helix and β-pleated sheet are both examples of secondary structures of proteins, which refers to the regular, repeating patterns of hydrogen bonding between the amino acids in polypeptide chains. Primary structure refers to the linear sequence of amino acids, tertiary structure refers to the overall folded shape of a single polypeptide chain, and quaternary structure refers to the arrangement of multiple polypeptide chains in a multi-subunit protein.

The α-Helix and β-Pleated Sheet Are Examples of Which Level