Cancer is a disease of abnormal growth of a cell. Normally, the cells of our body grow and divide in a controlled manner. When normal cells are damaged or cells become old, they die and are replaced by healthy cells. In cancer, the signals that control cell growth do not work properly. Cancer cells keep on growing and multiply when they should stop. In other words, cancer cells do not follow the same rules as healthy cells.
Each cell is governed by genes that instruct cells how to function, when to grow and when to divide. Cancer develops from the body's own cells: it begins with a change in the genes of a single cell. Genetic changes or mutations (changes or manipulations in the cell) can interfere with the normal function of a cell.
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Each cell is governed by genes that instruct cells how to function, when to grow and when to divide. Cancer develops from the body's own cells: it begins with a change in the genes of a single cell. Genetic changes or mutations (changes or manipulations in the cell) can interfere with the normal function of a cell.
To get more details click here
