This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Who got nobel prize for discovery of split genes? \nSelect and explain. \nA. Burnet, B. Susumu Tonegawa, C. Neils K jerne, D. Paul Ehrlich', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b)One gene - one protein concept in past.But it was overcome by discovery of split genes for immunoglobulins.Discovered by Susumu Tonegawa and awarded nobel prize for it.', 'role': 'assistant'}]