What are ‘Selectable markers’? What is their use in genetic engineering?
The host cells that contain the vector can be selected with the help of a gene called a selectable marker that results in the elimination of the non–transformant. It is used in genetic engineering for e.g. – the gene that encodes resistance towards the antibiotics are found to be useful selectable markers as they insert into a cell and result in the selective growth of transformants only.
