Contact Inhibition Means That

Multiple Choice

Contact inhibition means that

A) there are more chromosomes within the nucleus than there should be.
B) cells are able to divide without the presence of stimulatory growth factors.
C) cells only divide a certain specified number of times and then quit.
D) when cells come in contact with a neighbor, they stop dividing.
E) cells have gained the ability to invade lymphatic and blood vessels.