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Regulating Cells
Regulating Cells
Regulating Cells
Regulating Cells
Regulating Cells
Regulating Cells
Regulating Cells
Regulating Cells
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Regulating Cells

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Transcript

  • 1. Regulating the Cell Cycle Controlling Cell Division Page 250; 10-3
  • 2.  
  • 3.  
  • 4.
    • Apoptosis – programmed cell death
  • 5. Cancer is a cell division disorder
    • Cancer often works like this…
    • Some DNA becomes mutated  this leads to the ‘command’ that stimulates cells to divide even though they are supposed to wait…
    • [growth promoting proteins get ‘over-made’]
    • Genes that inhibit cell division are called tumor suppressors. (these are good)
    • Mutations can ‘inactivate’ these genes and the cell cycle “brake” is removed. Control proteins become inactivated. (this is bad)
    • There is nothing to stop the cell from rapid and out of control division. MANY CANCER CELLS HAVE MUTATIONS IN THEIR TUMOR-SUPRESSOR GENES.
  • 6.  
  • 7. Page 252
  • 8.  

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