A) consists of four subunits
B) may be either \[\alpha \]or \[\beta \]
C) is unrelated to two functions of the protein
D) is dictated by the primary structures of the individual subunits
Correct Answer: D
Solution :
Proteins are linear polymers of amino acids. Many highly complex proteins consist of an aggregation of polypeptide chains, which are held together by hydrophobia interaction, and hydrogen, ionic bonds. Their precise arrangement constitutes the quaternary structure.
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