Cancer

Question 1

List the key differences between cancer cells and normal cells.

Answer 1

Normal cells grow, divide and die
Cancer cells multiple to produce other abnormal cells

Question 2

What is a benign tumor? What is a malignant tumor?

Answer 2

Benign tumors, non invasive tumors
tend to grow slowly and do not spread.

Malignant tumors, cancerous, invasive
can grow rapidly, invade and destroy nearby normal tissues, and spread throughout the body.

Question 3

What is the normal function of proto-oncogenes? Why do mutations in these genes lead to cancer?

Answer 3

regulating normal cell division.

Cells will start to grow out of control,

Question 4

What is the normal function of tumor suppressor genes?
Why do mutations in these genes lead to cancer?

Answer 4

slow down cell division or tell cells to die at the right time

Cells will start to grow out of control

Question 5

What is the normal function of genome stability genes?
Why do mutations in these genes lead to cancer?

Answer 5

preserve and faithfully transmit the genetic material from generation to generation or from one somatic cell to another.

damage to multiple genes controlling cell division and tumor suppressors.