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': 'Nohern blot is used to detect ? \nSelect and explain. \nA. Protein, B. Immunoglobulin, C. RNA, D. DNA', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Visualization of a specific DNA or RNA fragment among the many thousand of contaminating molecules requires the convergence of number of techniques collectively termed the blot transfer.Southern blot - Detects DNANohern blot - Detects RNAWestern blot - Detects proteins (proteins are separated by electrophoresis, renatured and analysed for an interaction by hybridization with a specific labelled DNA probe).', 'role': 'assistant'}]