Q.

Which one of the following is a true statement for PCR?

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a

Taq polymerase is isolated from a virus.

b

It is used for in vivo synthesis of DNA.

c

Primers act as selectable markers.

d

During amplification, Taq polymerase is used for extension.

answer is D.

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Detailed Solution

In PCR, Taq polymerase is used to add nucleotides to the primers annealed to the template DNA.

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Which one of the following is a true statement for PCR?