Tumor Suppressors are Genes Whose Protein Products Regulate Cell Cycle

Question

Tumor suppressors are genes whose protein products regulate cell cycle checkpoints and________ .
A) promote advancement of the cell cycle
B) activate proto- oncogenes
C) block progression of the cell cycle
D) prevent apoptosis in normal cells
E) phosphorylate proteins involved in the cell cycle

Accepted Answer

Tumor suppressor genes produce proteins that help regulate the cell cycle and can block its progression to prevent uncontrolled cell division, which is a hallmark of cancer development.