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Transcript
MITOSIS MITOSIS MITOSIS MITOSIS INTERPHASE INTERPHASE INTERPHASE CYTOKINESIS CYTOKINESIS CYTOKINESIS CYTOKINESIS CYTOKINESIS PROPHASE PROPHASE METAPHASE METAPHASE TELOPHASE TELOPHASE ANAPHASE ANAPHASE PROMETAPHASE PROMETAPHASE PROMETAPHASE = Division of cytoplasm Underway by late telophase Animal cells-cleavage furrow; plant cells-cell plate Two daughter nuclei begin to form Nuclear envelope begins to reform Longest phase of mitosis Shortest phase of mitosis Nucleoli disappear Spindle and centrosomes disappear Microtubules attach to kinetochore proteins on centromeres Nuclear envelope fragments Two sister chromatids separate and move toward poles =Nondividing phase of cell cycle Includes G1, S, G2 Nuclear envelope is visible One or more nucleoli are visible Mitotic spindle begins to form Centrioles move towards poles Cell leaves cycle & stops dividing Some can return to cycle with signal; some never divide Also called “reverse prophase” Growth occurs; Cell is “doing its job” Most of life spent here S- DNA makes copy G2- Centrosomes make copies Centrosomes appear Chromosomes line up on equator Chromosomes spread out into chromatin Chromatin condenses; Chromosomes first visible Nonkinetochore microtubules elongate cell DNA IS LESS CONDENSED AS CHROMATIN DNA IS MORE CONDENSED AS CHROMOSOMES DNA IS LESS CONDENSED AS CHROMATIN DNA IS MORE CONDENSED AS CHROMOSOMES DNA IS LESS CONDENSED AS CHROMATIN DNA IS MORE CONDENSED AS CHROMOSOMES NONDIVIDING PHASE CELL IS DOING ITS JOB CELL DIVISION PHASE NONDIVIDING PHASE CELL IS DOING ITS JOB CELL DIVISION PHASE