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 fragments formed by the action of Restriction endonucleases, are separated by - \nSelect and explain. \nA. Gel electrophoresis, B. Agarose gel electrophoresis, C. Paper chromatography, D. High pressure liquid chromatography', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 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'}]