Question

Which of the following steps is/are catalysed by Taq polymerase in a PCR?

• A. Denaturation of template DNA
• B. Annealing of primers to template DNA
• C. Extension of primer end on template DNA
• D. All of these

Answer 1

The correct option is C Extension of primer end on template DNA

PCR is the short form for polymerase chain reaction which is the phenomenon which is used for amplification of the part-specific region of DNA as per our interest. Taq polymerase is the enzyme that attaches nucleotides together and help is the extension of primer end on the template DNA.

So, the correct answer is 'extension of primer end on the template DNA'.