Identify the correct sequence of steps in each cycle of Polymerase Chain Reaction $(PCR)$:

  • A
    $(1)$ Denaturation $\rightarrow$ Extension $\rightarrow$ Annealing
  • B
    $(2)$ Denaturation $\rightarrow$ Annealing $\rightarrow$ Extension
  • C
    $(3)$ Annealing $\rightarrow$ Denaturation $\rightarrow$ Extension
  • D
    $(4)$ Extension $\rightarrow$ Annealing $\rightarrow$ Denaturation

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$A.$ Denaturation
$B.$ Annealing
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What type of method is the $PCR$ technique?

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