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': 'DNA restriction fragments are separated by ? \nSelect and explain. \nA. Paper chromatography, B. Agarose gel electrophoresis, C. Thin-layer chromatography, D. Ultracentrifugation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Agarose gel electrophoresis DNA is cut into large fragments, using restriction enzymes. These fragments are then separated by gel electrophoresis (either agarose or polyacrylamide gel electrophoresis).", 'role': 'assistant'}]