Source of Taq polymerase used in PCR is a

Options

A. Thermophilic fungus
B. Mesophilic fungus
C. Thermophilic bacterium
D. Halophilic bacterium

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) process. It is known for its ability to synthesize DNA.

2. **Characteristics of Taq Polymerase**: This enzyme is thermostable, meaning it can function at high temperatures, which is essential for the denaturation step in PCR where the DNA strands are separated.

3. **Identifying the Source**: To determine the source of Taq polymerase, we need to know which organism produces it. Taq polymerase is derived from a specific type of bacteria.

4. **Type of Organism**: The organism that produces Taq polymerase is a thermophilic bacterium, which means it thrives in high-temperature environments.

5. **Name of the Bacterium**: The specific bacterium from which Taq polymerase is obtained is called Thermus aquaticus.

6. **Conclusion**: Based on the characteristics and the source of Taq polymerase, the correct answer to the question is that it is obtained from a thermophilic bacterium.

**Final Answer**: The source of Taq polymerase used in PCR is a thermophilic bacterium (option C).

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