Mitosis

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  • The Significance of Mitosis
    • Chromosome number
      • Produces cells that are genetically identical for genetic stability
    • Asexual reproduction
      • Take place in unicellular organisms, some insects, and some flowering plants (no genetic variation)
    • Damage and disease
      • If the genes controlling the cell cycle are damages, cells may not divide or divide too frequently (cause a tumour)
        • Cancer causing gene = oncogene
  • Growth
    • An organism can increase its cell number = can grow, repair tissues + replace dead cells
    • The Significance of Mitosis
      • Chromosome number
        • Produces cells that are genetically identical for genetic stability
      • Asexual reproduction
        • Take place in unicellular organisms, some insects, and some flowering plants (no genetic variation)
      • Damage and disease
        • If the genes controlling the cell cycle are damages, cells may not divide or divide too frequently (cause a tumour)
          • Cancer causing gene = oncogene

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