Enzyme required for polymerase chain reaction (PCR) is
A
RNA polymerase
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B
Ribonuclease
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C
Taq polymerase
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D
Endonuclease
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Solution
The correct option is C Taq polymerase Like DNA replication in an organism, PCR requires a DNA polymerase enzyme that makes new strands of DNA, using existing strands as templates. The DNA polymerase typically used in PCR is called Taq polymerase, after the heat - tolerant bacterium from which it was isolated Thermus aquaticus.