A cell is expressing the mutant form of ras, but one of the downstream relay proteins is not present because of another mutation. How will cell division be affected in this scenario?
A) Cell division will decrease because the mutant form of ras decreases cell division.
B) Cell division will increase because the mutant form of ras increases cell division.
C) The cell will divide normally.
D) The cell will not divide at all unless other proteins that stimulate cell division are present.

Question

Quizplus · Accepted Answer

The mutant form of ras stimulates cell division, but if one of the downstream relay proteins is not present, the signal cannot be transmitted to the next protein in the pathway, and cell division will not occur unless other proteins that can stimulate cell division are present. Therefore, the cell will not divide at all unless other proteins that stimulate cell division are present.

A Cell Is Expressing the Mutant Form of Ras, but One