Q. 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
Explanation
DNA polymerase which is stable at high temperature (>90$℃$) 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
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.