The correct order of steps in Polymerase Chain Reaction (PCR) is

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extension, denaturation, annealing

annealing, extension, denaturation

denaturation, extension, annealing

denaturation, annealing, extension

answer is D.

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Detailed Solution

Each cycle of PCR (Polymerase chain reaction) has three steps: (i) Denaturation(ii) Primer annealing(iii) Extension of primers

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