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Asked by Dremy to Bernerd, Erick, Joseph, Ken, Peter on 12 Jul 2017.
Question: what causes cancer
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Joseph Olwendo answered on 12 Jul 2017:
Substances that cause DNA mutations are known as mutagens, and mutagens that cause cancers are known as carcinogens. Particular substances have been linked to specific types of cancer. Tobacco smoking is associated with many forms of cancer, and causes 90% of lung cancer.
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Bernerd Fulanda answered on 14 Jul 2017:
Dear Dremy
Cancer is a disease of the cells in the body. The body is made up from millions of tiny cells. Different parts of the body such as organs, bones, muscles, skin, and blood are made up from different specialised cells. All cells have a centre called a nucleus which contains genes made from DNA. The genes control the functions of the cell.
There are many different types of cells in the body, and many different types of cancer which arise from different types of cell. What all types of cancer have in common is that the cancer cells are abnormal and multiply out of control
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