Mitosis Cell Cycle Cell Regulation

What is the purpose the the cell cycle checkpoints?

• To repair damaged cells before they enter cell division.

• To remove damaged cells from an organism.

What occurs during G1?

• Checkpoint after S phase

• Chromosomes line up at the equator.

• The cell grows and develops.

• Spindle fibers separate chromosomes to opposite poles of the cell. 

In prophase of mitosis, chromosomes

• form and the nuclear envelope disappears.

• are pulled toward opposite ends of the cell.

• chromosomes line up along the equator of the cell

• chromosomes begin to decondense and the two new nuclei begin to form.

Tags

NGSS.HS-LS1-4

In metaphase of mitosis, chromosomes

• form and the nuclear envelope disappears.

• are pulled toward opposite ends of the cell.

• chromosomes line up along the equator of the cell

• chromosomes begin to decondense and the two new nuclei begin to form.

Tags

NGSS.HS-LS1-4

After mitosis, the cytoplasm and organelles are divided between the two new forming cells in a process called

• centriole

• chromatin

• cytokinesis

• centromere

Tags

NGSS.HS-LS1-4

How many cell cycle checkpoints are there?

• 1

• 2

• 3

• 4

What is the first checkpoint of the cell cycle?

• Mitosis checkpoint

• G₁ checkpoint

• G₂ checkpoint

This is the cell cycle checkpoint that makes sure DNA has been replicated correctly during S phase.

• G1 Checkpoint

• G2 Checkpoint

• M Checkpoint

• I Checkpoint

In anaphase of mitosis, chromosomes

• form and the nuclear envelope disappears.

• are pulled toward opposite ends of the cell.

• chromosomes line up along the equator of the cell

• chromosomes begin to decondense and the two new nuclei begin to form.

Tags

NGSS.HS-LS1-4

In telophase of mitosis, chromosomes

• form and the nuclear envelope disappears.

• are pulled toward opposite ends of the cell.

• chromosomes line up along the equator of the cell

• chromosomes begin to decondense and the two new nuclei begin to form.

Tags

NGSS.HS-LS1-4