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Somatic cells

Somatic cells. Cell Cycle. Cell theory. The Cell Cycle and Cancer. Before a cell divides, the DNA is checked to make sure it has replicated correctly . If DNA does not copy itself correctly, a gene mutation occurs.

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Somatic cells

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  1. Somatic cells

  2. Cell Cycle

  3. Cell theory

  4. The Cell Cycle and Cancer

  5. Before a cell divides, the DNA is checked to make sure it has replicated correctly. If DNA does not copy itself correctly, a gene mutation occurs. Neighboring cells also communicate with dividing cells to regulate their growth. There are several factors that regulate the cell cycle and assure a cell divides correctly. DNA replication animation:click on DNA picture

  6. Tumors in Liver Tumor in Colon Cancer is a disease of the cell cycle. Some of the body’s cellsdivide uncontrollably and tumors form.

  7. Mutations may be caused by: 1. radiation 2. smoking 3. Pollutants 4. chemicals 5. viruses DNA mutations disrupt the cell cycle.

  8. While normal cells will stop dividing if there is a mutation in the DNA, cancer cells will continue to divide with mutation.

  9. Normal Cell Division DNA is replicated properly. 2. Chemical signals start and stop the cell cycle. 3. Cells communicate with each other so they don’t become overcrowded. Cancer Cells Mutations occur in the DNA when it is replicated. 2. Chemical signals that start and stop the cell cycle are ignored. 3. Cells do not communicate with each other and tumors form. SUMMARY

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