2.

Cells start to divide when they receive a signal. They continue to divide

until they get another signal to stop. A cell with damaged DNA may not

respond to the stop signal. The cell can become cancerous and divide

uncontrollably. The cancerous cell and all its daughter cells can form a

tumor. During which step of the cell cycle does a cell get a signal to

begin cell division?

A. cytokinesis

B. interphase

C. prophase

D. telophase