What Enzyme is Used to Synthesize Daughter Strands of DNA

Question

What enzyme is used to synthesize daughter strands of DNA during PCR?
A) replicase
B) DNA polymerase
C) RNA polymerase
D) Taq polymerase

Accepted Answer

Taq polymerase is the enzyme used to synthesize daughter strands of DNA during PCR. It is a thermostable DNA polymerase that can withstand the high temperatures used during PCR amplification. Taq polymerase is derived from the bacterium Thermus aquaticus and can add nucleotides to the 3' end of a DNA strand, extending it in a primer-dependent manner.