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Question

Cancer cells can easily be damaged by radiation than normal cells because they are

A
Starved on mutation
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B
Undergoing rapid division
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C
Different in structure
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D
Ion-dividing
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Solution

The correct option is C Undergoing rapid division
Cancer is caused by loss of control over cell growth and division capacity. Radiation makes small breaks in the DNA inside cancer cells. When normal cells are exposed to radiation, as the division rate is slow, there is sufficient time available for them to get repaired whereas in case of cancer cells the division is rapid, so there is no time for repairment. So, cancer cells are easily damaged by radiation.
The answer is B.

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