Polyethylene glycol can help in the uptake of foreign DNA into the host cell, this type of gene transfer is called as:

Options

A. Electroporation
B. Chemical- mediated genetic transformation
C. Microinjection
D. Particle gun

Answer

To answer the question regarding the role of polyethylene glycol in the uptake of foreign DNA into host cells, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the type of gene transfer that involves polyethylene glycol (PEG) assisting in the uptake of foreign DNA into host cells.

2. **Identifying the Options**: The options provided are:
- Electroporation
- Chemically mediated genetic transformation
- Microinjection
- Particle gun

3. **Analyzing Each Option**:
- **Electroporation**: This method involves applying an electric field to increase the permeability of the cell membrane, allowing DNA to enter. However, it does not specifically involve PEG.
- **Chemically Mediated Genetic Transformation**: This method uses chemicals (like polyethylene glycol) to facilitate the uptake of foreign DNA into the host cell. PEG is known to promote the uptake of DNA by making the cell membrane more permeable.
- **Microinjection**: This technique involves directly injecting DNA into a cell using a fine needle. It does not involve PEG.
- **Particle Gun**: Also known as a gene gun, this method uses microprojectiles to deliver DNA into cells at high velocity. It does not involve PEG.

4. **Selecting the Correct Answer**: Since polyethylene glycol is a chemical that aids in the uptake of foreign DNA, the correct answer is **Chemically Mediated Genetic Transformation**.

5. **Final Answer**: The type of gene transfer that polyethylene glycol can help in is called **Chemically Mediated Genetic Transformation**.