This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Biochemistry
[{'content': 'Human insulin gene receptor found on chromosome \nSelect and explain. \nA. 11, B. 15, C. 19, D. 21', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The insulin gene is located in the sho arm of chromosome 11 in humans in the region p13-->pter', 'role': 'assistant'}]