The most common tool of genetic engineering

Options

A. PBR366 plasmid Escherichia coli
B. M13 plasmid of haemophilus a egyptius
C. PBR322 plasmid of Escherichia coli
D. PCR238 Plasmid of bacilulus globigil

Answer

**Step-by-Step Solution:**

1. **Understanding Genetic Engineering Tools**: Genetic engineering involves manipulating an organism's DNA to achieve desired traits. The tools used in this process are essential for successful gene manipulation.

2. **Identifying Common Tools**: Among the various tools used in genetic engineering, plasmids are one of the most common. Plasmids are small, circular DNA molecules found in bacteria that can replicate independently of chromosomal DNA.

3. **Focusing on PBR322**: The PBR322 plasmid is a well-known vector in genetic engineering. It was one of the first plasmids to be used for cloning and is derived from the E. coli bacterium.

4. **Characteristics of PBR322**: PBR322 contains genes that confer antibiotic resistance, which allows for the selection of bacteria that have taken up the plasmid. It also has multiple cloning sites (MCS) where foreign DNA can be inserted.

5. **Conclusion**: Therefore, the most common tool of genetic engineering is the PBR322 plasmid derived from E. coli.

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