Why is polyethylene glycol used in somatic hybridisation?

Explanation

**Step-by-Step Solution:**

1. **Understanding Somatic Hybridization**: Somatic hybridization is a technique used to fuse somatic cells from two different plant species. This process allows for the combination of genetic material from both species, leading to the creation of hybrid cells.

2. **Role of Polyethylene Glycol (PEG)**: Polyethylene glycol (PEG) is a chemical compound that is used in the process of somatic hybridization. Its primary role is to facilitate the fusion of the cytoplasm of the two different somatic cells.

3. **Cytoplasmic Fusion**: The fusion of the cytoplasm, also known as cytoplasmic fusion, is essential for somatic hybridization. PEG helps to promote this fusion by altering the properties of the cell membranes, making it easier for the two cells to merge.

...