Cancer

What is a normal gene that gets changed to a cancer gene?

• metastasis

• carcinogens

• tumour

• oncogene

What is the spread of cancer in the body?

• metastasis

• carcinogen

• malignant

• oncogene

 

Where is the first check point?

• S

• G1

• prophase

• G0

Which of the following is not a way mutations occur in cellular DNA?

• UV radiation

• DNA repair proteins not working correctly

• Genetics

• Extreme cold

Sometimes cells have mutations that affect their function negatively. Most of the time, these cells will perform _________. However, cancer cells fail to do this and will continue to live and replicate.

• Meiosis

• Apoptosis

• Synthesis

• Carcinogenesis

Which of the following are checkpoints that the cell must pass before dividing?

• Have enough nutrients

• Have correctly copied all DNA

• Be large enough to divide

• All of the above

Which of the following correctly describes cells that are in the G₀ phase?

• Mature nerve and muscle cells are unable to divide and are permanently in G₀.

• Cells in G₀ are growing and preparing for cell division.

• Many cells enter G₀ when they reach the checkpoint during the M phase.

• DNA replication occurs during G₀.

 The normal function of a tumor suppressor gene is 

• to produce growth signals

• to cause the cell to move faster through the cell cycle

• to code for proteins that inhibit, or slow, cell division

• to attack cancer cells in the body

Oncogenes

• are mutated forms of tumor suppressor genes

• are mutated genes the inhibit the cell cycle

• are mutated forms of genes that code for proteins that normally assist in apoptosis

• are mutated genes that code for proteins which activate cell division too often or at the improper time

The image on the left side is the representation of what kind of tumor?

• Cancerous

• Benign

• Malignant

• Invasive