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The taq polymerase enzyme is obtained from

1. Thermus aquaticus
2. Thiobacillus ferrooxidans
3. Bacillus subtilis
4. Pseudomonas putida

Correct answer: Thermus aquaticus

Solution

Taq polymerase is the heat-stable DNA polymerase used in PCR, and it was originally isolated from the thermophilic bacterium Thermus aquaticus. Its name comes from the organism: Taq = Thermus aquaticus.

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