Cell Cycle and Checkpoints

Cells spend the majority of their lives in

• Interphase
• Mitosis
• Synthesis 
• Gap 2

Cells of organisms must go through cell division for?

• growth

• repair of damaged cells

• replacement of dying cells.

• All of these

Tags

NGSS.HS-LS1-4

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. 

True or False:
Normal cells grow and divide continuously.

• True
• False

Tags

NGSS.HS-LS1-4

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

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

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