This diagram shows the two states in which the Rb protein is found in the cell.
In which state would you find the Rb protein in a cell that needs to undergo rapid cell division?

Question

This diagram shows the two states in which the Rb protein is found in the cell. 
In which state would you find the Rb protein in a cell that needs to undergo rapid cell division?

Quizplus · Accepted Answer

In State B, Rb is phosphorylated and inactive, allowing the cell to move into the S phase of the cell cycle and undergo rapid cell division. State A, on the other hand, represents the active, unphosphorylated form of Rb that is involved in halting cell division. Therefore, in a cell that needs to undergo rapid cell division, Rb would be found in state B.

This Diagram Shows the Two States in Which the Rb