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Biology Biotechnology Principles and Processes Previous Year Questions Single Correct MCQ
Published on: August 11, 2026

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

A
It is used to ligate introduced DNA in recipient cells.
B
It serves as a selectable marker.
C
It is isolated from a virus.
D
It remains active at high temperature.

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The correct answer is:
D

Taq DNA polymerase used in PCR is thermostable, so it can function at high temperatures during DNA denaturation.

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