Question

The figure below shows three steps (A,B,C) of polymerase chain reaction (PCR). Select the option giving correct identification together with what it represents?

• A. $\text{C-Denaturation at a temperature of about}{98}^{\circ }C\text{separating the two DNA strands}$
• B. $\text{B-Denaturation at a temperature of about}$ ${50}^{\circ }C$
• C. $\text{C-Extension in the presence of heat stable DNA polymerase}$
• D. $\text{A-Annealing with two sets of primers}$

Answer 1

The correct option is C $\text{C-Extension in the presence of heat stable DNA polymerase}$


From the above figure, it can be identified as C represents extension of DNA strands in the presence of heat stable DNA polymerase like Taq polymerase.