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Transcript
Chapter 10 Mitosis Name Period Cell Cycle Galaxies Star Evolution Characteristics of Stars “Cells only come from cells.” --Dr. Rudolf Virchow They do this by Mitosis. Mitosis only happens in body cells. (somatic cells) The Cell “LIFE” Cycle has three parts: 1. Interphase 2. Mitosis 3. Cytokinesis Interphase G1 phase -- cell growth (size & new organelles) S phase -- synthesis (copy) of DNA G2 phase -- cell growth (new organelles) Mitosis 1. Prophase - DNA is compacted into chromosomes - nuclear envelope disappears - spindle fibers form Mitosis 2. Metaphase - chromosomes line up in the middle of the cell Mitosis 3. Anaphase - chromosomes are pulled apart by the spindle fibers Mitosis 4. Telophase - chromosomes start to unwind - nuclear envelope forms - spindle fibers break down Cytokinesis - dividing of the cytoplasm - 2 identical cells are made Cell Division (8-2) Prophase Anaphase Metaphase Telophase
