NEET 2012 Biology question

Which one of the following is not a property of cancerous cells whereas the remaining three are ?

(1)They show contact inhibitionCorrect
(2)They compete with normal cells for vital nutrients
(3)They do not remain confined in the area of formation
(4)They divide in an uncontrolled manner

Answer: (1)

Solution

Normal cells show contact inhibition: their growth stops when they touch neighbouring cells. Cancerous (transformed) cells have lost this property, so they keep dividing in an uncontrolled manner, pile up into a tumour, compete with normal cells

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Question ID VK-091147