This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition & Digestion, Subject name: Biochemistry
[{'content': 'Minky Kinky hair disease is due to defect in: \nSelect and explain. \nA. Cu transporter, B. Fe transporter, C. Zn transporter, D. Mg transporter', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. A. Cu transporterMenke's (kinky or steely) hair SyndromeMutation in ATP7A geneX-linked recessive conditionDefective Copper binding P-type ATPaseCopper is not mobilised from Intestine", 'role': 'assistant'}]