The secondary structure of proteins refers to the
a. combination of polypeptide chains.
b. sequence of amino acids in the chain.
c. strong bonds between loops of the chain.
d. straight, folded, or coiled shape of the amino acid chain.
D
The secondary structure of proteins refers to the straight, folded, or coiled shape of the amino acid chain. The combination of polypeptide chains is the quaternary structure. The sequence of amino acids in the chain is the primary structure. The strong bonds between loops of the chain is the tertiary structure.
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