Mitosis is the process where one cell duplicates and splits into two completely identical daughter cells. This can be useful in a number of situations in an organism:Growth and repair of tissues is achieved through mitosisWhite blood cells undergo mitosis to facilitate an immune response to attack pathogens that have entered the bodyAsexual reproduction in single cell organisms, some plants and a few animalsThe production of gametes (egg cells in females and sperm cells in males)The production of stem cells