3. Energy & Cell Processes

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

Which of the following hypotheses is best supported by observing cancer cells in a culture?

A cancer cell __________.

In the human genome, oncogenes __________.

Most human cancers are __________.

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

Why is cancer more prevalent in older people?

In what way can cancer be hereditary?

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

What two genes are often mutated in colon cancer?

Which of the following accurately characterizes our current understanding of cancer development?

Describe three ways that cancer cells differ from normal cells.

Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related toa. disruption of mitotic spindle formation.b. suppression of cyclin production.c. myosin denaturation and inhibition of cleavage furrow formation.d.inhibition of DNA synthesis.

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.