This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Molecular Genetics, Subject name: Biochemistry
[{'content': 'Northern blot is for: \nSelect and explain. \nA. DNA, B. RNA, C. Protein, D. DNA protein interaction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. RNANorthern blotRNASouthern blotDNAWestern blotProteinEastern blotPost-translational modified protein', 'role': 'assistant'}]