Q. Which one is a true statement regarding DNA polymerase used in PCR?
A) It is used to ligate introduced DNA in recipient cell
B) It serves as a selectable marker
C) It is isolated from a virus
D) It remains active at high temperature
Explanation
DNA polymerase remains active at high temperature. Usually Taq DNA polymerase, isolated from a thermophilic bacterium Thermus aquaticus, is used in most of the cases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.