What is cancer? How is a cancer cell different from the normal cell? How do normal cells attain cancerous nature?
Uncontrolled cell division which leads to the formation of a tumour is called cancer. Unlike a normal cell, which loses its ability to divide in a few iterations, cancer cells continue to divide endlessly. Generally, the normal cell stops diving when it comes in contact with other cells. This ability is known as contact inhibition, and cancerous cells are abnormal as they do not possess this ability.