The taq polymerase enzyme is obtained from

Options

A. Pseudomonas putida
B. Thermus aquaticus
C. Thiobacillus ferroxidans
D. Bacillus subtillis

Answer

**Step-by-Step Solution:**

1. **Understanding Taq Polymerase**: Taq polymerase is an enzyme that plays a crucial role in the polymerase chain reaction (PCR) technique, which is used to amplify DNA.

2. **Identifying the Source**: The question asks for the source of Taq polymerase. The options provided are various bacterial strains.

3. **Analyzing the Options**:
- **Pseudomonas putida**: This is a common bacterium but not known for producing Taq polymerase.
- **Thermus aquaticus**: This is a thermophilic (heat-loving) bacterium known for producing Taq polymerase.
- **Theobacillus peroxidens**: This bacterium is not associated with Taq polymerase.
- **Bacillus subtilis**: While this is a well-known bacterium, it does not produce Taq polymerase.

4. **Conclusion**: Since Taq polymerase is derived from a thermophilic bacterium, the correct answer is **Thermus aquaticus**.

5. **Final Answer**: The Taq polymerase enzyme is obtained from **Thermus aquaticus**.

---