CancerSpec 2.4
Cell division is normally controlled, so a tissue makes only the cells it needs. Cancer is the result of changes in cells that lead to uncontrolled cell division.
The cells keep dividing by mitosis when they should not. This can form a mass of cells called a tumour.
Quick check
Put the stages of the cell cycle in order, starting with interphase.
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Interphase, prophase, metaphase, anaphase, telophase, cytokinesis.
What happens to the chromosomes in metaphase?
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They line up along the equator of the cell.
Name three uses of mitosis.
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Growth, repair and asexual reproduction.
What does diploid mean?
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The nucleus contains two sets of chromosomes, which form pairs.
What causes cancer?
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Changes in cells that lead to uncontrolled cell division.