Contact inhibition is best explained by which of the following statements?
a. Contact between neighboring cells triggers reactions leading to inhibition of mitosis.
b. As neighboring cells become more tightly packed together, their size is restricted and
cytokinesis can no longer occur.
c. As cell number increases, the protein kinases they produce compete with neighboring
cells, inhibiting mitosis.
d. As cell number increases, the level of waste products increase, consequently slowing
metabolism leading to mitosis.
e. As cell number increases, size restrictions inhibit protein synthesis.
A
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