Meiosis is a type of cell division that results in the formation of gametes, or sex cells. The process of meiosis reduces the number of chromosomes in a cell by half, creating four genetically diverse daughter cells. This is important for sexual reproduction, as it ensures that each parent contributes an equal number of chromosomes to their offspring. Meiosis also creates variation in the genetic makeup of an organism, which is essential for survival in a changing environment.