WHAT IS A CELL LINE?
A cell line is a product of immortal cells that are used for biological research. Cells used for cell lines are immortal, that happens if a cell is cancerous. The cells can perpetuate division indefinitely which is unlike regular cells which can only divide approximately 50 times. These cells are 'useful' for experimentation in labs as they are always available to researchers as a product and do not require what is known as 'harvesting' (the acquiring of tissue from a host) every time cells are needed in the lab.