This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'In PCR, DNA polymerase is used in \nSelect and explain. \nA. DNA replication, B. DNA Elongation, C. DNA Mulitiplication, D. All', 'role': 'user'}, {'content': 'Answer: C \nExplanation: All PCR applications employ a heat-stable DNA polymerase, such as Taq polymerase (an enzyme originally isolated from the bacterium Thermus aquatics).This DNA polymerase enzymatically assembles a new DNA strand from DNA building blocks, the nucleotides, by using single-stranded DNA as a template and DNA oligonucleotides (also called DNA primers), which are required for initiation of DNA synthesis.', 'role': 'assistant'}]