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28/10/2021 2:37 pm
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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?
(1) C - Extension in the presence of heat stable DNA polymerase.
(2) B - Denaturation at a temperature of about 98°C separating the two DNA strands.
(3) A - Annealing with two sets of primers.
(4) A - Denaturation at a temperature of about 50°C
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28/10/2021 2:38 pm
Correct answer: (2) B - Denaturation at a temperature of about 98°C separating the two DNA strands.