What is Cancer?

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Cancer is nothing but a group of diseases associated with cells, the structural and functional unit of life. When male and female germs unite togather zygote if formed and by meiosis cell division a boby develops in mother's womb. It takes 9 months to develop fully to a baby. When we come on earth our body cells divides by Mitosis cell division and process lasts till death. By mitosis cell division we become adult. The cell which born from mother cell has to die after a certain period and new cell(s) take the position. But sometimes cell forget to die. The mitosis cell divison just goes on and on, new cells are formed but the old ones remain as earlier they were. As a result a tumor (mass of cells) is formed and gives birth to cancer.