The most commonly used DNA polymerase is Taq polymerase, which has an optimal activity at ______ but can survive short periods of exposure to temperatures up to ______.

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The most commonly used DNA polymerase is Taq polymerase.Taq polymerase has an optimal activity at 72°C.This enzyme can also survive for short periods of time at temperatures up to 95°C.This characteristic of Taq polymerase allows the PCR cycle to initially heat to 95°C to melt the test DNA from a double-stranded form to a single-stranded form.

The Most Commonly Used DNA Polymerase Is Taq Polymerase, Which