Question

0.16 Explain the stages of working of PCR.​

Answer 1

There are three main stages:

Denaturing – when the double-stranded template DNA is heated to separate it into two single strands.

Annealing– when the temperature is lowered to enable the DNA primers to attach to the template DNA.

Extending – when the temperature is raised and the new strand of DNA is made by the Taq polymerase enzyme.

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Answer 2

Correct answer she given