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The KEY characteristic that distinguishes cancer cells from normal cells is:
AHigh metabolic rate (always elevated in cells)
BLoss of contact inhibition and uncontrolled growth
CLarger nucleus (always doubled in cell size)
DResistance to all known antibiotic medicines
Answer & Solution
Correct answer: B. Loss of contact inhibition and uncontrolled growth
Cancer cells (1) lose CONTACT INHIBITION (normal cells stop dividing when touching neighbours; cancer cells don't), (2) divide uncontrollably, (3) METASTASISE (spread to distant sites). High metabolism alone is not specific.
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