This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Techniques in molecular biology, Subject name: Biochemistry
[{'content': 'Which one of the following enzymes is obtained from Thermophillus aquaticus bacterium which is heat stable and used in PCR at high temperature: \nSelect and explain. \nA. DNA polymerase III, B. Endonuclease, C. Taq polymerase, D. DNA gyrase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Taq polymerase Heat stable Derived from a bacteria; Thermophillus aquaticus or Thermus aquaticus. Lacks proof reading. Thermostable DNA Polymerase enzymes with proof reading function in PCR: Pfu: Pyrococcus furiosus Pwo polymerase: Pyrococcus woesei Tli: Thermococcus litoralis - also known as Vent Polymerase Best- Use Pfu in conjunction with Taq polymerase', 'role': 'assistant'}]