Q.

Which of the following is true about cancer cells?

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a

Cell cycles are precisely regulated

b

Telomerase activity is high

c

Telomerase inhibitor activity is very high

d

Exhibit contact inhibition

answer is D.

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Detailed Solution

Telomeres maintain genomic integrity in normal cells, and their progressive shortening during successive cell divisions induces chromosomal instability. In the large majority of cancer cells, the activity of telomerase cells is high and thus the telomere length is maintained.

Normal cells exhibit contact inhibition. The cell cycle is precisely is regulated in them.

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