PCR is ____ process involves a three step processes. First step is ____ / separation of double-stranded DNA by heating at ____ / 94-98*C. Second step is ____ of the primer to the target region / sequence of single stranded / denatured DNA by cooling / ____ the temperature / 50-56*C. Third step is strand ____ / polymerization by primer extension at 70-72*C. Catalysed by ____ / Taq polymerase by adding ____ in the ____ direction. The cycle is repeated many times / 30-40 cycles to amplify identical DNA molecules.

Describe the Polymerase Chain Reaction.

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