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Biology Mitosis vs. Meiosis

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Uploaded on Feb 23, 2009

http://www.mindbites.com/lesson/1467 for the full video

http://www.mindbites.com/series/103 for a bundle of videos on Meiosis. For an even broader bundle of videos that cover Cell Reproduction and Meiosis, check out http://www.mindbites.com/series/379 .

To search for topic-specific help in our library of 400+ video products for Biology, please refer to our Biology category at: http://www.mindbites.com/category/22-... .

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In this lesson, mitosis and meiosis are compared in terms of DNA replication, the number of divisions, the presence of synapsis, the number of daughter cells, and the numbers of chromosomes in the products and function.
From a similarity standpoint (between meiosis and mitosis), in both: DNA is replicated and the process consists of phases (prophase, metaphase, anaphase, telophase). On the flip side, Meiosis and Mitosis differ along the following dimensions: number of divisions (1 for mitosis and 2 for meiosis), synapsis is only a characteristic of meiosis (in prophase I), the number of daughter cells produced varies (4 non-identical haploid cells in meiosis and 2 identical cells in mitosis), the number of chromosomes in resulting cells varies (2N in mitosis to match the original parent cell and only N in meiosis as the resulting cells are haploid), and the function/objective of the processes vary (somatic cells are produced via mitosis and gametes are produced by meiosis).

Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology.

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