Question

Cell division is preceded by two growth phases. Besides growth, both G1 and G2

A) contain checkpoints that determine if the cycle will continue.
B) help move chromosomes to the new daughter cells.
C) produce more chromosomes before the cell divides.
D) grow and produce enough cytoplasm to fill two cells.

Answer 1

A is the right answer. both g1 and g2 contain checkpoints to ensure proper cellular division

Answer 2

A) contain checkpoints that determine if the cycle will continue.

Step-by-step explanation:

The cell cycle is regulated at three major checkpoints to ensure that all the events of a specific stage are completed before the cell enters the next stage.

The first checkpoint is between G1 and S phase while the second checkpoint is between G2 and mitosis. The G1 checkpoint checks the cell for its size, availability of nutrients and growth factors and for integrity of DNA. The G2 checkpoint checks the cell for its size and error-free replication of DNA.