Meiosis
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Meiosis

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    Meiosis Meiosis Presentation Transcript

    • Meiosis One diploid Cell creates 4 haploid cells. Diploid Cell= pairs of similar chromosomes (Humans have 46 chromosomes in 23 pairs) Haploid Cells= does not have pairs of chromosomes (Human has 23 different chromosomes)
    • Meiosis I Prophase I Metaphase I Anaphase I Telophase I
    • Meiosis II Prophase II Metaphase II Anaphase II Telophase II
    • Prophase I Chromatid pairs are visible. Duplicated chromosome pairs come near similar duplicated pairs. Spindle Fiber forms Nuclear memebrane breaks down.
    • Metaphase I Duplicated chromosomes line up in the middle of the cell next to similar chromosome pair. Spindle fiber connects centrioles to chromosome PAIRS.
    • Anaphase I Chromosome PAIRS move away from their similar chromosome pair. Spindle fiber pulls the chromosome pairs towards the centrioles
    • Telophase I Cytoplasm divides Two new cells are formed No nuclear membrane is formed
    • Meiosis II
    • Prophase II Chromosome pairs are visible in both cells. Spindle Fiber forms.
    • Metaphase II Chromosome pairs line up in the middle of the cell. Spindle fiber attaches to each chromosome.
    • Anaphase II Spindle Fiber separates chromosome pairs into single chromosome Chromosomes are pulled towards the centrioles.
    • Telophase II Spindle Fiber disappears Nuclear membrane forms around chromosomes Cytoplasm seperates FOUR new cells are formed with two chromosomes each.
    • Meiosis Ends 4 different haploid cells are made.