Which one of the following enzymes is obtained from Thermophilus aquaticus bacterium which is heat stable and used in PCR at high temperature?
ANSWER: (C) Taq polymeraseREF: Lehninger Principles of Biochemistry 4th edition page 321PCR uses a heat-stable DNA polymerase, such as the Taq polymerase (derived from a bacterium that lives at 90 cC), which remains active after every heating step and does not have to be replenished.