Question

Taq polymerase is an enzyme which

• A. Is extremely heat-tolerant
• B. Can function even in freezing temperatures
• C. Can function in both hot and cold extremes of temperatures
• D. Is used in PCR technique

Answer 1

Answer: (A), (D)

Is used in PCR technique

Taq polymerase is a heat-resistant DNA polymerase enzyme present in the bacterial species Thermophilus aquaticus, which is an extremophile being able to survive in thermal springs that are above boiling temperatures. The ability to withstand such high temperatures has made Taq polymerase an ideal candidate to be used in Polymerase Chain Reaction process, which requires high temperatures.