3. Energy & Cell Processes

What is the primary difference between benign and malignant tumors?

Which of the following statements about ovarian cancer is false?

Which of the following is true of malignant tumors?

Wilms tumor is suspected in a 5-year-old child. Which action should be avoided during the initial assessment?

The BRCA1 and BRCA2 genes are thought to be what type of genes?

What is the primary difference between a benign and a malignant tumor?

What is the difference between a benign tumor and a malignant tumor?

What gene has been called the "guardian angel of the genome"?

One difference between cancer cells and normal cells is that cancer cellsa. are unable to synthesize DNA.b. are arrested at the S phase of the cell cycle.c. continue to divide even when they are tightly packed together.d. cannot function properly because they are affected by density-dependent inhibition.

Compare and contrast the effects of removing growth factors from asynchronous cultures of human cells that are normal and those that are cancerous.

What two genes are often mutated in colon cancer?

Scientific Thinking The study described in Module 8.10 was purely observational; there were no controlled groups. Imagine that you are an oncologist. Design a hypothesis-driven study to determine whether mastectomy improves breast cancer survival over lumpectomy. What are your control groups? Would such a study be ethical to undertake? Why or why not?

Describe three ways that cancer cells differ from normal cells.

In what way can cancer be hereditary?