Which of the following levels of protein structure involves more than one polypeptide chain?
A) primary
B) secondary
C) tertiary
D) quaternary

Question

Quizplus · Accepted Answer

Quaternary structure refers to the arrangement of multiple polypeptide chains (subunits) in a protein. Therefore, it involves more than one polypeptide chain. Primary structure refers to the linear sequence of amino acids in a single polypeptide chain, secondary structure refers to the local folding patterns of a single polypeptide chain, and tertiary structure refers to the overall 3-dimensional shape of a single polypeptide chain.

Which of the Following Levels of Protein Structure Involves More