The thermostable enzyme , Taq polymerase used in PCR is obtained from

Options

A. Bacillus subtilis
B. Pseudomonas putide
C. Thermus aquaticus
D. Thiobacillus ferroxidans

Answer

To solve the question regarding the source of the thermostable enzyme Taq polymerase used in PCR, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Enzyme**: The enzyme in question is Taq polymerase, which is essential for the polymerase chain reaction (PCR).

2. **Understand the Source**: Taq polymerase is derived from a specific organism. It is important to know that this enzyme is not just any polymerase; it is thermostable, meaning it can withstand high temperatures.

3. **Locate the Organism**: Taq polymerase is obtained from a bacterium known as Thermus aquaticus. This bacterium thrives in high-temperature environments, such as hot springs.

4. **Significance of Thermostability**: The thermostability of Taq polymerase allows it to function effectively during the high-temperature steps of PCR, where DNA denaturation occurs.

5. **Confirm the Answer**: Since Taq polymerase is sourced from Thermus aquaticus, we can conclude that the correct answer to the question is that Taq polymerase is obtained from this specific bacterium.

### Final Answer:
The thermostable enzyme Taq polymerase used in PCR is obtained from **Thermus aquaticus**.

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