By contrast, thermal cyclers use electric heating and cooling components to drive the PCR reaction through each of its three phases: denaturation, annealing and extension. During denaturation ...

PCR involves the enzymatic amplification of nucleic acid templates, and can be divided into four major steps, listed below. 1 Denaturation: Double-stranded DNA separates into single strands. Annealing ...

PCR amplifies DNA in a three-step process: denaturation, which melts double-stranded DNA into single strands; annealing, which lets small pieces of primer DNA bind to either side of the region of ...