What Might Be the Result of a Mutation in One

Multiple Choice

What might be the result of a mutation in one of the proteins responsible for the G₁ checkpoint?

A) The cell would continue to S phase without signals to divide being present.
B) The cell would divide uncontrollably.
C) The cell would move through the cell cycle more rapidly than normal.
D) Nothing;one of the other checkpoints would make up for its absence.
E) All of the above.