Which of the following is an example of cells that normally do not divide being stimulated to divide?
A) Platelets that accumulate at a wound secrete platelet-derived growth factor, which stimulates adjacent skin cells to divide.
B) Interleukins stimulate immature bone marrow cells to divide and create new red blood cells.
C) A chemotherapeutic agent stimulates healthy cells to grow and choke off a tumor.
D) Cyclin-Cdk's stimulate the division of precursor cells of white blood cells.
E) Both a and b

Question

Quizplus · Accepted Answer

Platelets accumulating at a wound secrete growth factors that can stimulate non-dividing cells in the skin to divide and aid in healing. Similarly, interleukins can stimulate immature bone marrow cells, which are normally not in a division phase, to divide and produce new red blood cells. These examples involve external signals prompting cells that do not normally divide to enter the cell cycle and divide.

Which of the Following Is an Example of Cells That