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': 'Enzyme(s) used in polymerase chain reaction is/are - \nSelect and explain. \nA. Restriction endonuclease, B. DNA polymerase, C. Alkaline phosphate, D. RNA polymerase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In PCR, heat stable DNA polymerase (Taq polymerase) is used.', 'role': 'assistant'}]