PCR is a technique used to copy a target DNA sequence. Researchers often use DNA polymerase from Thermus aquaticus, a bacteria species that lives around hydrothermal vents. denaturation 94-96 degrees celsius.
elongation 72 degrees celsius
annealing 68 degrees celsius

Which of the following best explains why the polymerase from the species T. aquaticus is often used
for PCR?
A. T. aquaticus polymerase has an optimal temperature of 68°C.
B. T. aquaticus polymerase does not denature at high temperatures.
C. T. aquaticus polymerase can be used more than once without degrading.
D. T. aquaticus polymerase adds nucleotides to both the 3' and 5' ends of DNA.