... when the become cancerous. These can be in any of the Stages, G1, G2, or even S. There are a number of genes which exert control In the cell cycle, one of the best known is P53 which is implicated in over 50% of human cancers. Animals are multi-cellular organisms that require the normal function of all the organs of the body. These organs are developed from different tissues and each of the tissues are products of cell division. For the body to function normally, the organs and tissues must communicate to control the development of the cells and tissues. Otherwise, uncontrolled cell growth in one part of the body could infringe on the development of other cells or tissues. Then the normal functions of the individual would be seriously impaired. Research over many years has shown that these control networks have a strong genetic component. This research has recently benefited ...

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