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Question

The taq polymerase enzyme is obtained from

A
Thermus aquaticus
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B
Thiobacillus ferroxidans
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C
Bacillus subtilis
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D
Pseudomonas putida
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Solution

The correct option is A Thermus aquaticus
The DNA polymerase typically used in PCR is called Taq polymerase, named after the heat-tolerant bacterium from which it was isolated (Thermus aquaticus). This heat-stability makes Taq polymerase ideal for PCR. High temperature is used repeatedly in PCR to denature the template DNA, or separate its strands.

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