Replicated centrioles migrate to opposite endsof cell

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•Replicated centrioles migrate to opposite endsof cell –Form spindle fibers, made up of microtubules 8/30/2016 6 Mitosis: Prophase Mitosis: Metaphase •Replicated chromosomes line up in the middleof the cell –Centromeres are attached to spindle fibers 8/30/2016 7
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Mitosis: Anaphase •Centromeres separate, resulting in separationof paired chromatids •Separate chromatids are pulled by spindlefibers to opposite sides of cell •Separate chromatids are now calledchromosomes –Each new set of chromosomes is identical! Mitosis: Anaphase 8/30/2016 8 Mitosis: Telophase •Chromosomes reach opposite ends of cell •Spindle fibers break down •New nuclear envelope forms around each setof chromosomes, forming new nucleus at eachend –New nuclei = daughter nuclei •Chromosomes start to uncoil •Cytokinesis completes Mitosis: Telophase 8/30/2016
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9 Cytokinesis •Division of the cytoplasm •Begins during late anaphase, continuesthrough telophase •Cleavage furrow forms in plasma membraneacross equator •Furrow deepens until parent cell is dividedinto two daughter cells •Formation of two daughter cells, each withidentical genetic material, is end of celldivision Which Phase?
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