Meiosis - Meiosis Cell division plays a very important role...

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Meiosis Cell division plays a very important role in the life cycle of a cell. Without cell division all living organisms would fail to reproduce. According to the website www.emc.maricopa.edu, “Sexual reproduction occurs only in eukaryotes. During the formation of gametes, the number of chromosomes is reduced by half, and returned to the full amount when the two gametes fuse during fertilization.” While explaining about the phases of Meiosis the same website explains that, “Two successive nuclear divisions occur, Meiosis I (Reduction) and Meiosis II (Division). Meiosis produces 4 haploid cells. Mitosis produces 2 diploid cells. The old name for meiosis was reduction/ division. Meiosis I reduces the ploidy level from 2n to n (reduction) while Meiosis II divides the remaining set of chromosomes in a mitosis-like process (division). Most of the differences between the processes occur during Meiosis I.” While explaining about the stages of Meiosis the website http://www.biology.arizona.edu
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This note was uploaded on 05/12/2008 for the course BIO 110 taught by Professor Mrs. during the Spring '08 term at Northern Virginia.

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Meiosis - Meiosis Cell division plays a very important role...

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