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9.3 Cell Cycle Regulation Cellular Reproduction Normal Cell Cycle Different cyclin/CDK combinations signal cell activities, including DNA replication, protein synthesis, and nuclear division throughout the cell cycle. Chapter 9
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Cellular Reproduction Quality Control Checkpoints The cell cycle has built-in checkpoints that monitor the cycle and can stop it if something goes wrong. Spindle checkpoints also have been identified in mitosis. Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Abnormal Cell Cycle: Cancer Cancer is the uncontrolled growth and division of cells. Cancer cells can kill an organism by crowding out normal cells, resulting in the loss of tissue function. Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Causes of Cancer The changes that occur in the regulation of cell growth and division of cancer cells are due to mutations. Various environmental factors can affect the occurrence of cancer cells. Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Apoptosis Programmed cell death Cells going through apoptosis actually shrink and shrivel in a controlled process. Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Stem Cells Unspecialized cells that can develop into specialized cells when under the right conditions Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Embryonic Stem Cells After fertilization, the resulting mass of cells divides repeatedly until there are about 100–150 cells. These cells have not become specialized. Chapter 9 9.3 Cell Cycle Regulation
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Cellular Reproduction Adult Stem Cells Found in various tissues in the body and might be used to maintain and repair the same kind of tissue Less controversial because the adult stem cells can be obtained with the consent of their donor Chapter 9 9.3 Cell Cycle Regulation
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https://www.youtube.com/watch?v=0gF8 bCE4wqAhttps://www.youtube.com/watch?v=0gF8 bCE4wqA HeLa Cells
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