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(B) Thermal cycling is the fundamental process used in the Polymerase Chain Reaction $(PCR)$.It involves repeated cycles of heating and cooling the re

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$PCR$ technique

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(B) Thermal cycling is the fundamental process used in the Polymerase Chain Reaction $(PCR)$.It involves repeated cycles of heating and cooling the reaction mixture to specific temperatures.These cycles consist of three main steps: $1.$ Denaturation (at high temperature,$\approx 94-98^{\circ}C$),$2.$ Annealing (at lower temperature,$\approx 50-65^{\circ}C$),and $3.$ Extension (at optimal temperature for $DNA$ polymerase,$\approx 72^{\circ}C$).This process allows for the exponential amplification of a specific $DNA$ segment.

Thermal cycling is a key component of which technique?

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