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Social, Ethical And Biological - Papers Online

Social, Ethical And Biological

Cancer is one of the most complex and devastating diseases that claim the life of many humans. Today there are one in three people worldwide who are affected by cancer, and almost 60% of these people will almost certainly die. 7000 New Zealanders die every year from this disease. It is the second largest killer next to heart disease. Cancer does not just affect certain groups of people, it can affect anybody and it is not just one disease, it refers to more than a hundred diseases.
Cancer is caused by carcinogens. At present, hundreds of chemicals are known to induce cancer. Normally, the body’s cells divide in an orderly way, allowing the body to grow and to heal after injury. ...

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the high rate of the cell division. When these balls become too large for fluids to flow through, the middle of the ball dies. TSG’s act as anti-proto-oncogenes, they regulate the rate of cell division. POG’s and TSG’s constantly compete to overpower each other. These TSG’s can be mutated and this brings about a change in the control mechanism of cell division.
Cells are stimulated to divide through a growth factor. Growth factor molecules bind to cell membranes of cells and send a chemical message to a receptor in the cell membrane. The receptor sends a message through the cytoplasm to the nucleus to stimulate cell division. Sometimes when these growth factors are absent the receptor in the cell membrane is mutated to send out the message to the nucleus.

Cells are also stimulated to divide through the two proteins, cyclins and cyclin-dependent kinases. When these two join together, this stimulates cell division. These proteins act on ...

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Social, Ethical And Biological. (2004, November 26). Retrieved February 1, 2026, from http://www.essayworld.com/essays/Social-Ethical-And-Biological/18093

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PAPER DETAILS

Added: 11/26/2004 10:24:59 PM
Category: Miscellaneous
Type: Premium Paper
Words: 1068
Pages: 4

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