10-2              Cell Cycle          Page 245                                Interphase                                  ...
ChromosomesIn Interphase, chromosomesappear as chromatinWhen mitosis begins, chromatincondenses to form visiblechromosomes...
Mitosis - ProphaseChromosomes condenseNuclear membrane disappearsSpindle fibers form as centrioles move towardpoles
Mitosis - Metaphase        Chromosomes line        up along the cell’s        center        Chromosomes        attach to s...
Mitosis - Anaphase         Sister chromatids         separate and         move toward         poles
Mitosis – Telophase  and Cytokinesis    Telophase – last step of mitosis    – Individual chromosomes gather      at poles ...
Mitosis in Plant     vs. Animal Cells   No                           Centriolescentrioles              Spindle            ...
Another Look at MitosisMitosis in a Lily Cell   Onion Cells           Mitosis in Whitefish Cells
Mitosis ReviewHow many chromosomes didthis cell start with?– FOURDuring which phase aresister chromatids separated?– ANAPH...
Cell cycle for moodle
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Cell cycle for moodle

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Cell cycle for moodle

  1. 1. 10-2 Cell Cycle Page 245 Interphase – G 1 - cell grows, normal G 1 Phase functions of life – S Phase – DNA replicatesM Phase – G 2 - cell grows and S Phase prepares for mitosis M Phase – Mitosis – Cell division G 2 Phase
  2. 2. ChromosomesIn Interphase, chromosomesappear as chromatinWhen mitosis begins, chromatincondenses to form visiblechromosomesSister chromatids are identicalhalves of a duplicated chromosome • Chromatids are joined at the centromere
  3. 3. Mitosis - ProphaseChromosomes condenseNuclear membrane disappearsSpindle fibers form as centrioles move towardpoles
  4. 4. Mitosis - Metaphase Chromosomes line up along the cell’s center Chromosomes attach to spindle fibers at the centromeres
  5. 5. Mitosis - Anaphase Sister chromatids separate and move toward poles
  6. 6. Mitosis – Telophase and Cytokinesis Telophase – last step of mitosis – Individual chromosomes gather at poles – Nuclear membrane reforms Cytokinesis – follows telophase – Cell pinches in half – Two cells form • Animal Cells – cleavage furrow • Plant Cells – cell plate
  7. 7. Mitosis in Plant vs. Animal Cells No Centriolescentrioles Spindle FibersPlant Cells Animal Cells Stages of mitosisCell plate Cell (PMAT) pinches at formsbetween cleavage cells furrow
  8. 8. Another Look at MitosisMitosis in a Lily Cell Onion Cells Mitosis in Whitefish Cells
  9. 9. Mitosis ReviewHow many chromosomes didthis cell start with?– FOURDuring which phase aresister chromatids separated?– ANAPHASEHow many chromosomes arein EACH daughter cell?– FOUR

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