8 Multiple Choice 1 point Differentiate between the levels of protein structures. What is the quaternary structure of a protein?
?The sequence of amino acids in a polypeptide chain
?The assembly of multiple polypeptide chains into a functional protein.
?The three-dimensional shape of a single polypeptide chain
?The folding and coiling of the polypeptide chain into
\alpha -helices and
\beta -pleated sheets.