Which one is a true statement regarding DNA polymerase used in PCR?

It is used to ligate introduced DNA in recipient cells

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It serves as a selectable marker

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It is isolated from a virus

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It remains active at high temperature

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Solution

The correct option is D It remains active at high temperature
Taq polymerase is a thermostable DNA polymerase named after the thermophilic bacterium Thermus aquaticus and is frequently used in polymerase chain reaction (PCR).

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