The normal function of a tumor suppressor gene is to
A)suppress the growth of tumors already present in all multicellular eukaryotes.
B)prevent progression of the cell cycle unless conditions are right for moving forward.
C)promote progress through the cell cycle.

Question

Quizplus · Accepted Answer

Tumor suppressor genes work to prevent progression of the cell cycle unless conditions are favorable for cell division, such as proper DNA replication and damage repair. This helps to prevent the formation and growth of tumors. Option A is incorrect because tumor suppressor genes cannot suppress the growth of tumors already present, but rather prevent their formation. Option C is also incorrect because tumor suppressor genes do not promote progress through the cell cycle, but rather regulate it to prevent uncontrolled cell division.

The Normal Function of a Tumor Suppressor Gene Is to