Meiosis is a reductional division in which the chromosomes are paired first, with each other, i.e., homologous chromosome pairing which is followed by a reduction in the number of chromosomes to half. The Meiosis is the type of cell division in which homologous chromosomes separate after an exchange of fragments. As a result of Meiosis, four haploid cells are produced, which are all genetically different from each other. This extent of variation is due to the process of crossing over or exchange of segments between homologous chromosomes.