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Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology: Principles and Processes1 Mark
MCQ
In reference to $\text{DNA}$ polymerase $\text{III}$, which statement is wrong ?
  • A
    It requires $\text{ATP}$ For polymerase action.
  • ✓
    Required for $\text{PCR}$
  • C
    More active than $\text{DNA}$ Pol $\text{I}$ and $\text{II}$
  • D
    Requires a previously made template to work on
✓

Answer

Correct option: B.
Required for $\text{PCR}$
Like $\text{DNA}$ replication in an organism, $\text{PCR}$ requires a $\text{DNA}$ polymerase enzyme that makes new strands of $\text{DNA},$ using existing strands as templates.
The $\text{DNA}$ polymerase typically used in $\text{PCR}$ is called Taq polymerase, after the heat $-$ tolerant bacterium from which it was isolated $($Thermus aquaticus$)$.

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