Q. During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first?

A) Extension
B) Denaturation
C) Ligation
D) Annealing
Explanation

[Solution] The first step, denaturation of dsDNA, needs a high temperature (about 94°C). Answer (2).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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