Which one is a true statement regarding DNA polymerase used in PCR?
1. It is used to ligate introduces DNA in recipient cells
2. It serves as a selectable marker
3. It is isolated from a virus
4. It remains active at high temperatures
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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. | A - Denaturation at a temperature of about 50ºC |
2. | C - Extension in the presence of heat-stable DNA polymerase |
3. | A - Annealing with two sets of primers |
4. | B - Denaturation at a temperature of about 98ºC separating the two DNA strands |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology