A cell cycle checkpoint at which phase would ensure sufficient nutrients for cell division were available?
A)S
B)prophase
C)metaphase
D)G1 or G2
E)G1 or S

Question

A cell cycle checkpoint at which phase would ensure sufficient nutrients for cell division were available?  
A)S
B)prophase
C)metaphase
D)G1 or G2
E)G1 or S

Quizplus · Accepted Answer

Checkpoints in G1 and G2 ensure that there are sufficient nutrients available for cell division. During G1, cells monitor the availability of nutrients and energy to make sure they are sufficient to support DNA synthesis and cell division. In G2, cells check to ensure that DNA replication has been completed properly before entering into mitosis. Therefore, ensuring there are enough nutrients available for cell division is predominantly checked during G1 and G2 phase checkpoints.

A Cell Cycle Checkpoint at Which Phase Would Ensure Sufficient