PCR uses a special DNA polymerase that resists ____.

Question

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PCR uses a specialized DNA polymerase called Taq polymerase, which is derived from bacteria that live in hot springs and can withstand high temperatures. This allows PCR to amplify DNA segments by repeatedly denaturing (separating) the two strands of DNA at high temperatures and then annealing (priming) primers to the template DNA at a lower temperature, followed by extension (elongation) of the primers at an intermediate temperature. The ability of Taq polymerase to resist high temperatures is essential for the success of PCR reactions.

PCR Uses a Special DNA Polymerase That Resists ____