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Explain how cancers are a result of uncontrolled cell division and list factors that can increase the chances of cancerous growth

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  • Essay length: 1215 words
  • Submitted: 24/04/2006
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AS and A Level Molecules & Cells

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Explain how cancers are a result of uncontrolled cell division and list factors that can increase the chances of cancerous growth

What is Mitosis? (Cell division)

Mitosis is a form of cell division which produces two daughter cells that are genetically identical to the parent cell. It occurs during growth and asexual reproduction. Mitosis, like meiosis is part of the cell cycle which consists of three phases; consisting of interphase, nuclear division and cell division. Interphase is when the cell carries out its normal processes and grows to the original size it was before cell division. It then receives a message that is should replicate, so the DNA replicates so that each chromosome consists of two identical chromatids, each containing a copy of that chromosomes DNA. In Nuclear Division the Nucleus divides, with help of the spindle fibres and then the whole cell divides (cell division). Mitosis is composed of five stages: Prophase, Metaphase, Anaphase, Telophase and Cytokinesis.

What is Cancer?

Cancer is the second most common cause of death in the western world (after heart disease). Cancer results in a development of a tumour, which is a group of abnormal cells that

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