Cell Cycle and Cancer Lesson

Cell Cycle and Cancer Lesson

Open Ended

What is cancer and how does it relate to the cell cycle?

Multiple Choice

True or False: Cancer is basically an inability of the body to control the speed at which cells divide.

• True

• False

Multiple Choice

True or False: BRCA1 helps repair some forms of mutation in your DNA. If your DNA is damaged, BRCA1 keeps the cell from dividing until the mutation is repaired.

• True

• False

Open Ended

What happens when BRCA1 is rendered ineffective?

Open Ended

What do you already know about the difficulties of curing cancer?

Multiple Select

What are treatment options for cancer? (Check all that apply.)

• Surgery

• Radiation

• Chemotherapy

• Hormone therapy

Open Ended

Why can cancer be so difficult to remove?

​https://youtu.be/h2rR77VsF5c

Open Ended

How can cancer adapt within the human body to be undetected?

Summary

• Nearly all cancers are caused by mutations in the DNA of the abnormal cells.

• In non-cancerous cells, proto-oncogenes promote cell growth and mitosis prior to cell division; thus, proto-oncogenes encode proteins needed for normal cellular functions.

• In non-cancerous cells, tumor suppressor genes temporarily discourage cell growth and division to allow cells to finish routine functions, especially DNA repair.

• Mutations in proto-oncogenes and tumor suppressor genes may lead to cancer.

• Usually mutations in multiple genes are necessary to develop cancer.