Which of the following shows the correct sequence of steps in a polymerase chain reaction (PCR)?

Denaturation, extension and annealing

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Annealing, extension and denaturation

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Extension, denaturation and annealing

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Denaturation, annealing and extension

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Solution

The correct option is D Denaturation, annealing and extension
Polymerase chain reaction (PCR) is a method for the amplification of specific DNA sequences.

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