Meiosis and Mitosis Chromosome Numbers?

Its okay it took me a really long time to get this too! lol Mitosis describes the process by which the nucleus of a cell divides to create two new nuclei, each containing an identical copy of DNA. (Cytokinesis describes the division of the rest of the cell.) Almost all of the DNA duplication in your body is carried out through mitosis. Meiosis, as described above, is the process by which certain sex cells are created. If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells. Others cells in your body contain 46 chromosomes: 23 from your father and 23 from your mother. Your egg (or sperm) cells contain only half that number -- a total of 23 chromosomes. When an egg and sperm unite to make a fertilized egg, the chromosomes add up to equal 46.Prophase I - doubling of homologous chromosomes (identical chromosomes - 2 pairs of each sister chromatids)

Metaphase I - lining of homologous chromosomes in the middle

Anaphase I - separation of homologous chromosomes to form two cells with 2n of the chromosomes

Telophase I - two cells - 2n of chromosome number

Metaphase II - lining up of chromosomes in the middle

Anaphase II - separation of chromosomes into chromatids (2n to 1n)

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