What are the differences between Meiosis and Mitosis?

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In addition, it should be noted that during meiotic division, the diploid chromosome number(2n) found in somatic cells, is reduced to the haploid(n) number, found in the gametes or reproductive cells. It should also be noted that during meiotic division, a very important step called crossing over occurs, resulting in a re-shuffling of genes that leads to variation not only within a species, but, within a family. Homologous chromosomes align themselves in tetrads--groups of four and exchange pieces of DNA. This important stage only occurs in prophase during meiosis and not in mitosis. 

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