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Meiosis x Mitosis Phase Prophase I Meiosis I Chromosomes are duplicated , chromatids are visible, nuclear membrane starts to disappear Still in Prophase I Duplicated chromosomes form pairs called tetrads in a process called synapsis Pair of chromosomes line up in the middle of the cell and each duplicated chromosome is attached to one spindle fiber only. Metaphase I Anaphase I Telophase I The chromosomes that are lined up in pairs separate to the opposite poles of the cell. Each duplicated chromosome still has 2 chromatids The cell separates in 2 identical cells and the duplicated chromosomes are in the cells Meiosis II Mitosis Same for Prophase in Mitosis Does not happen in Mitosis In Mitosis, there are no pairs of chromosomes and the duplicated chromosomes are attached to two spindle fibers, because the centromere will split in two and the chromatids will separate The chromatids are the ones that separate Each new cell had only one of the chromatids of each chromosome. Nuclear membrane will form. Nuclear membrane will not form No Cytokinesis will occur Prophase II Metaphase II Anaphase II Telophase II Cytokinesis Meiosis II ( second division starts) Duplicated chromosomes and spindle fibers reappear in each cell Duplicated chromosomes migrate to the center of the cell, each chromosome Is connected to two spindle fibers, because now the chromatids will separate Centromere split in two and sister chromatids separate Cell start to divide, nuclear membrane forms Cytokinesis This is the end of Mitosis Cytokinesis will occur Only one division occurs in Mitosis It is the same in metaphase in Mitosis It is the same for Anaphase in Mitosis It is the same for Telophase in Mitosis Cytokinesis