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: Biochemistry
[{'content': 'Northern Blot is used to detect \nSelect and explain. \nA. Proteins, B. RNA, C. DNA, D. Enzymes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Southern Blot - DNA\nNorthern Blot - RNA\nWestern Blot - Proteins.', 'role': 'assistant'}]