The correct sequence of steps in PCR in each cycle is:

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Denaturation→ Annealing→ Extension

Annealing→ Denaturation→ Extension

Extension→ Denaturation→ Annealing

Denaturation→ Extension→ Annealing

answer is A.

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Detailed Solution

Each cycle of PCR has three steps: Denaturation→ Primer Annealing→ Extension of Primers.

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