This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Regulation of Gene Expression , Subject name: Biochemistry
[{'content': 'All are examples of point mutation, except - \nSelect and explain. \nA. Silent mutation, B. Frame-shift mutation, C. Missense mutation, D. Nonsense mutation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Frame-shift mutation", 'role': 'assistant'}]