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9.Biotechnology Principals and Process
medium
Which one is a true statement regarding $DNA$ polymerase used in polymerase chain reaction?
A
$DNA$ polymerase is responsible for $DNA$ synthesis
B
It is isolated from Protozoa
C
It is serves as a selectable marker
D
It is used to ligate introduced $DNA$ in recipient plant cell
Solution
$DNA$ polymerase which is stable at high temperature $\left(>90^{\circ} \mathrm{C}\right)$ is required to carry out the synthesis of new $DNA$. The $DNA$ polymerase like Taq polymerase is generally used in $PCR$ reactions which is isolated from a bacterium Thermus aquaticus
Standard 12
Biology
