What is mitosis? ( Use a minimum of 5 sentences. )

Mitosis is a neccessary process that helps the creation of life. The purpose of it is to make cells to regrow and replace old, dead, and/or wornout cells. What happens during mitosis is that a single cell will duplicate each and every one of its contents. This includes chromosones and more. It will then split into two identical daughter cells. This is how it makes it's newer cells.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).