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What is contact inhibition? Mention the ...

What is contact inhibition? Mention the types of tumours.

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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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