This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Non sense mutation is seen in - \nSelect and explain. \nA. AIHA, B. Thalassemia, C. Sickle cell anemia, D. Hemophilia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Thalassemia Nonsense mutation is seen in beta-thalassemia, cystic fibrosis, Duchenne muscular dystrophy and Hurler syndrome.", 'role': 'assistant'}]