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': 'Menkes Kinky hair syndrome is characterized by a congenital deficiency of \nSelect and explain. \nA. Serum ceruloplasmin, B. Serum copper, C. Ferochelatase, D. Copper binding ATPase', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Menkes disease ("Kinky" or "steely" hair disease) is a disorder of copper metabolism due to mutations in the gene for a copper-binding P-type ATPase, i.e. ATP7A gene.', 'role': 'assistant'}]