Q.

Which of the following is not true about cancer cells?

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a

They exhibit metastasis

b

They show contact inhibition

c

They evade apoptosis

d

They undergo abnormal cell division

answer is B.

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Detailed Solution

Normal cells show a property called contact inhibition virtue of which contact with other cells inhibits their uncontrolled growth. Cancer cells do not show contact inhibition.

Apoptosis is a form of programmed cell death that is exhibited by normal cells but evaded by cancerous cells.

Cancerous cells exhibit abnormal cell division giving rise to masses of cells called tumors.

Cells sloughed from some tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property called metastasis is the most feared property of malignant tumors.

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Which of the following is not true about cancer cells?