What do you think causes the cells to stop the repair process?

reduced or poor blood supply

Explanation:

Since errors in the repair of DNA breaks can generate instability in the genome, repair of these breaks is a highly regulated process.

It is, therefore, essential the existence of control mechanisms that detect errors in this process and stop the cell cycle to allow the cell to repair the breaks, and if this is not possible, to eliminate the damaged cell.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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telophase and anaphase