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12345 M phase G 2 phase S phase G 1 phase.

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Presentation on theme: "12345 M phase G 2 phase S phase G 1 phase."— Presentation transcript:

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6 M phase G 2 phase S phase G 1 phase

7 Mitosis is the dividing phase of the cell cycle There are four steps and one dividing period

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10 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming Go to Section:

11 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming Section 10-2 Go to Section: a.Prophase: DNA condenses into chromosomes & the nuclear envelope breaks down

12 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming b.Metaphase: Chromosomes line up across the center of the cell

13 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming c.Anaphase: Sister chromatids are pulled to opposite ends of the cell

14 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming d.Telophase: chromosomes loosen up and the nuclear envelope reforms around each cluster of chromatids

15 Centrioles Chromatin Interphase Nuclear envelope Cytokinesis Nuclear envelope reforming Telophase Anaphase Individual chromosomes Metaphase Centriole Spindle Centriole Chromosomes (paired chromatids) Prophase Centromere Spindle forming e.Cytokinesis: the cell splits into 2 identical cells

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