This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'True about denaturation of proteins is all except \nSelect and explain. \nA. Disruption of secondary structure occurs, B. Sequence of amino acids remain the same, C. Biological activity is retained, D. Crystallization', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Denaturation is always accompanied by a loss of biological function, e.g. enzymes are inactivated.\nThis is because biological functions of proteins depend on their higher order structures.\nDenaturation disrupts higher order (secondary, tertiary and quaternary) structure, but the primary structure (amino acid sequence) remains intact.', 'role': 'assistant'}]