Meiosis begins with a diploid cell containing two copies of each chromosome (termed homologs).Firstly, the cell undergoes DNA replication and now each homolog consists of two identical sister chromatids.After this, each set of homologous chromosomes pair with each other and perform exchanging of genetic information via homologous recombination. This leads to crossing over between homologs.In the first meiotic division, the homologous chromosomes separate daughter cells by the spindle apparatus. Then, the cells proceed to a second division without the DNA replication intervening round.The sister chromatids thus segregate to form daughter cells producing a total of four haploid cells.