Mitosis and Meiosis.

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Presentation transcript:

Mitosis and Meiosis

mitosis A process of cell division that forms two new nuclei, each of which has the same number of chromosomes. Occurs in eukaryotic cells

meiosis A process of cell division during which the number of chromosomes decreases to half the original number, and results in 4 new haploid cells. Produces sex cells (sperm & egg) Haploid: half the original number of chromosomes

Meiosis Meiosis animation: 4 daughter cells produced Each daughter cell has half the chromosomes of the parent 2 sets of cell division involved Same steps as in mitosis Meiosis animation: http://www.youtube.com/watch?v=D1_-mQS_FZ0&NR=1

This may help you remember these terms: MITosis takes the cell and Makes It Two (diploid=n) Meiosis has to do with sex From the cell’s point of view: mITosis results in Identical Twins mEioSis results in Egg and Sperm (haploid=2n) Clyde Freeman Herreid – Dept. of Biological Sciences: Buffalo State Univ. of New York