Biology Biotechnology Principles and Processes Processes of Recombinant DNA Technology Single Correct MCQ
Published on: August 13, 2026

In the PCR technology, the DNA segment is replicated over a billion times. This repeated replication is catalyzed by the enzyme

A
DNA polymerase
B
Taq polymerase
C
DNA dependent RNA polymerase
D
Primase

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The correct answer is:
B

In PCR (Polymerase Chain Reaction), the enzyme Taq polymerase catalyzes the repeated synthesis of DNA. It is a thermostable DNA polymerase obtained from Thermus aquaticus and can withstand the high temperatures used during PCR.

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