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': 'Protein fragments separation is/are done by: \nSelect and explain. \nA. Ultrafiltration, B. Chromatography, C. Centrifugation, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All Correct : Chromatography, Centrifugation, Ultrafiltration, Electrophoresis', 'role': 'assistant'}]