DNA polymerase can be obtained from

Options

A. pBR 322
B. Thermus aquaticus
C. Agrobacterium tumefaciens
D. Retro virus

Answer

**Step-by-Step Text Solution:**

1. **Understanding DNA Polymerase**: DNA polymerase is an enzyme that plays a crucial role in the process of DNA replication. It catalyzes the synthesis of DNA by assembling nucleotides, which are the building blocks of DNA.

2. **Function of DNA Polymerase**: The primary function of DNA polymerase is to facilitate the replication of DNA. This means it helps in creating a new strand of DNA by adding nucleotides to an existing strand.

3. **Source of DNA Polymerase**: In laboratory settings, DNA polymerase is essential for conducting DNA replication experiments. One of the most well-known sources of DNA polymerase is from thermophilic (heat-loving) bacteria.

4. **Specific Source**: The specific thermophilic bacterium from which DNA polymerase can be obtained is called *Thermus aquaticus*. This bacterium is notable because its DNA polymerase can withstand high temperatures, making it particularly useful for polymerase chain reaction (PCR) techniques.

5. **Conclusion**: Therefore, the answer to the question "DNA polymerase can be obtained from" is *Thermus aquaticus*.

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