Exit ticket Cell Cycle and Cancer 10/2/2020

Sister chromatids are

• found only when a cell is not actively dividing

• tightly linked together at the centromere

• formed when chromatids separated during cell division

• made only of DNA

Tags

NGSS.HS-LS1-4

The diploid chromosome compliment of human somatic cell consists of how many chromosomes?

• 14

• 23

• 46

• 58

Eukaryotic cells spend most of their cell cycle in which phase?

• interphase

• prophase

• metaphase

• anaphase

Tags

NGSS.HS-LS1-4

The process by which the cytoplasm of a eukaryotic cell divides to produce two cells is called

• mitosis

• cytokinesis

• binary fission

• telophase

Tags

NGSS.HS-LS1-4

Which molecules act as gatekeepers for each checkpoint of the cell cycle?

• p53 gene

• cyclins and cycline-dependent kinases

• thyroid hormones

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 is the first checkpoint of the cell cycle?

• Mitosis checkpoint

• G₁ checkpoint

• G₂ checkpoint

When is apoptosis initiated?

• When DNA damage is repaired.

• When cells are removed from the cell cycle.

• When DNA damage cannot be repaired.

Uncontrolled cell division is stopped by...

• tumor suppressor genes
• oncogenes

Tags

NGSS.HS-LS1-4

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