Question

the critical checkpoints that control the cell cycle are at the
multiple choice
m to g₁ stage and g₂ to m stage.
g₁ to s stage and g₂ to m stage.
s to g₂ stage and g₂ to m stage.
m to g₁ stage and s to g₂ stage.

Explanation:

Cell cycle checkpoints are crucial regulatory mechanisms. The G1 - S checkpoint ensures the cell has appropriate size, nutrients, and undamaged DNA before entering the S phase (DNA synthesis). The G2 - M checkpoint verifies that DNA replication is complete and DNA is not damaged before the cell enters mitosis (M phase).

Answer:

G₁ to S stage and G₂ to M stage.