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': 'Method of chromatography in which molecules that are negatively charged are selectively released from stationary phase into the positively charged molecules in mobile phase is termed as \nSelect and explain. \nA. Affinity chromatography, B. Ion-Exchange chromatography, C. Adsorption chromatography, D. Size-Exclusion chromatography', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In ion exchange chromatography, charged protein replaces the respective ion on exchange resin. For example, in DEAE cellulose chromatography (anion exchange), negatively charge proteins bound to DEAE resin (stationary phase) and release Cl- from it.', 'role': 'assistant'}]