Biolistics (gene-gun) is suitable for

Options

A. DNA fingerprinting
B. Disarming pathogen vectors
C. Transformation of plant cells
D. Constructing recombinant DNA by joining with vectors

Answer

### Step-by-Step Solution:

1. **Understanding Biolistics (Gene Gun)**:
- Biolistics, also known as the gene gun method, is a technique used to introduce foreign DNA into cells. It is particularly useful in plant biotechnology.

2. **Mechanism of Action**:
- The method involves the use of high-speed bombardment of microscopic particles, typically made of gold or tungsten. These particles are coated with the desired nucleic acid (DNA) that needs to be transferred into the plant cells.

3. **Equipment Used**:
- A device known as a gene gun is employed to accelerate these particles at high speeds towards the target plant cells. The force from the gene gun allows the particles to penetrate the cell walls and membranes of the plant cells.

4. **Application in Plants**:
- The primary application of the biolistics method is the transformation of plant cells. This means that it is used to introduce new genes into plant genomes to create genetically modified plants with desirable traits.

5. **Example of Use**:
- An example of biolistics in action is the creation of a genetically modified tomato variety known as "Flavor Saver," which has an extended shelf life compared to regular tomatoes. This demonstrates the practical application of the technique in improving agricultural products.

6. **Conclusion**:
- Given the options provided, biolistics (gene gun) is most suitable for the transformation of plant cells. Therefore, the correct answer is option C.

### Final Answer:
**Biolistics (gene gun) is suitable for: Transformation of plant cells (Option C).**

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