Cell Cycle and Checkpoints

Uncontrolled cell division is stopped by...

• tumor suppressor genes
• oncogenes

Tags

NGSS.HS-LS1-4

What happens during the S phase?

• A checkpoint over the connection of the spindle fibers
• The cell grows
• DNA is replicated
• The cell enters the G0 phase

What happens in cytokinesis?

• The cell fully splits into two cells
• The cell digests its extra DNA
• The cell prepares for mitosis
• There are eight important checkpoints there

Tags

NGSS.HS-LS1-4

After mitosis and cytokineses, one cell becomes...

• Two identical cells
• Two genetically different cells
• Four identical cells
• Four genetically different cells

Tags

NGSS.HS-LS1-4

The cell cycle involves several checkpoints. Why?

• To repair DNA damage.
• To check for glucose.
• To prevent dehydration.

During metaphase, the chromosomes

• disappear
• line up in the middle
• separate
• condense

Tags

NGSS.HS-LS1-4

During interphase, the cell

• grows, repairs, and makes more DNA.
• shrinks or shrivels.
• enters a deep cycle.
• stops growing

Tags

NGSS.HS-LS1-4

During anaphase

• the chromosomes pull apart to opposite ends
• spindle fibers begin to form
• 2 new identical cells are made
• chromosomes line up in the middle

Tags

NGSS.HS-LS1-4

The picture shown represents

• interphase
• prophase
• telophase
• cytokinesis

Tags

NGSS.HS-LS1-4

The picture shown represents

• anaphase
• metaphase
• interphase
• telophase

Tags

NGSS.HS-LS1-4