Question

Examine the model of the cell cycle, shown here. Which of these statements describes the events that occur in G1 and G2, but not
S during interphase?
A)
Cell growth and genome duplication occur in G1 and G2.
B)
DNA replication and cell division occur in G1 and G2
Cell growth and cell cycle checkpoints occur in G1 and G2
D
Nuclear division and cytoplasmic division occur in G1 and G2.
7)

Answer 1

In the cell cycle, cell growth and cell cycle checkpoints occur in G1 and G2 but not in S.

The interphase of the cell cycle has 3 main phases which occur in chronological order:

1. G1 phase
2. S phase
3. G2 phase

Cell growth and development take place in G1 and a checkpoint exist to ensure that the required size is reached before the cell will irreversibly commit itself to division by moving to the S phase.

The S phase is characterized by DNA synthesis where the amount of DNA in the cell doubles by replication.

Protein synthesis takes place at G2 and another checkpoint ensures that the integrity of chromosomes is intact before moving to the mitotic phase.

Thus, cell growth and checkpoints have nothing to do with the S phase but G1 and G2 phases.

More on the cell cycle can be found here: https://brainly.com/question/25282664