Cell Cycle and Checkpoints

Name the 3 checkpoints of the cell cycle

• Anaphase checkpoint, mitosis/metaphase checkpoint, and telophase checkpoint

• Interphase checkpoint, S phase checkpoint, and M phase checkpoint

• G1 checkpoint, G2 checkpoint, and S phase checkpoint

• G1 checkpoint, G2 checkpoint, and M checkpoint

How many cell cycle checkpoints are there?

• 1

• 2

• 3

• 4

What happens during the S phase?

• The cell is actively dividing.

• The cell grows.

• DNA is replicated.

• The cell enters the G0 phase.

Neuron cells, like the one pictured, rarely replicate. Therefore, we consider them to be in the _____ phase.

• G₀

• G1
• S
• M

Which of the following phases is not included in interphase?

• G1
• S
• G2
• M

Why is the Cell Cycle often represented as a circle?

• Because it is easy to draw

• Because the cell cycle has a distinct beginning and end point

• to highlight the checkpoints

• to show that it repeats over and over

Tags

NGSS.HS-LS1-4

If you look at a cell under a microscope, which phase is it MOST likely to be in? Hint: What is the longest stage of the cell cycle?

• Cytokinesis

• M phase

• Interphase

• G1 Phase

G1, S, and G2 phases are combined into one long phase called _____________.

• Interphase
• Mitosis
• Cytokinesis
• The cell cycle

Why do cells undergo mitosis?

• For growth

• For repair of an injury

• For replacement of old cells

• All of the above

Tags

NGSS.HS-LS1-4

Which checkpoint in the cell cycle is DNA duplication checked for errors?

• G1

• G2

• M

• cytokinesis