Question

Which of the following does not serve as a signal for cell division?

1) repressor genes
2) joining of cyclins and Cdks
3) contact inhibition
4) surface-to-volume ratio

Answer 1

The signal for cell division that does not serve as a signal is contact inhibition. Contact inhibition is a phenomenon in which normal cells stop dividing when they come into contact with neighboring cells.

Step-by-step explanation:

The signal for cell division that does not serve as a signal is 3) contact inhibition. Contact inhibition is a phenomenon in which normal cells stop dividing when they come into contact with neighboring cells. This mechanism prevents uncontrolled cell growth and plays an important role in preventing tumor formation.