Cell Cycle Regulation

What is the term for cells that are dividing out of control?

• Cancer cells

• Regular cells

• Tumor cells

• Abnormal cells

How many checkpoints does a cell have? (Hint: See image)

• One

• Two

• Three

• Four

Tags

NGSS.HS-LS1-4

How does stopping at a checkpoint HELP a cell?

• Detects a problem

• Cell cycle is stopped

• Attempts to repair mistake

• All of the above

DNA is replicated during ______ of the cell cycle.

• Gap 1

• Synthesis (S phase)

• Gap 2

• Gap 0

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 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

Which of the following is a type of protein that regulates the cell cycle? 

• actin

• myosin

• cyclin

• pepsin

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.

How many cell cycle checkpoints are there?

• 1

• 2

• 3

• 4

The _________ checkpoint monitors DNA quality.

• G1

• S

• G2