The transfectability of the cells was tested using a GFP expression vector.

The transfectivity of the plasmid was tested in different cell lines.

The transfective process allows for the introduction of foreign DNA into cells.

The transfectibility of the cells was assessed using a fluorescent reporter gene.

The transfectional efficiency of the new method is significantly higher than the previous one.

The co-transfections were performed using Lipofectamine 2000.

Co-transfection is a common technique used in molecular biology.