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Question : What is contact inhibition? Mention the types of tumours.

Answer»

Solution :NORMAL cells show a property called contact inhibition by virtue of which contact with other cells inhibit their UNCONTROLLED growth. Cancer cells appear to have lost this property. As a RESULT of this, cancerous cells just continue to divide giving rise to masses of cells called tumours.Tumours are of TWO TYPES (a) Benign (b) Malignant tumours


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