This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Techniques in molecular biology, Subject name: Biochemistry
[{'content': 'The first human protein produced by rDNA technology: \nSelect and explain. \nA. Insulin, B. Growth hormone, C. Albumin, D. Casein', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The first human protein produced by rDNA technology is Insulin. Production of recombinant Insulin: NOTE: Gene coding for insulin is localized on 11p15 site of chromosome.', 'role': 'assistant'}]