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    				| 1. | (a) Name the factors that lead to transformation of normal cells into Cancer cells.(b) Name two methods used in the treatment of Cancer. | 
| Answer» (a) Factors that lead to transformation of normal cells into cancer cells are : • Environmental factors, • Smoking, • Hereditary factors, • Harmful radiations. (b) Two methods used in the treatment of cancer are : (i) Surgery (ii) Chemotherapy | |