One Mechanism by Which Viruses May Cause Cancer Is to Interrupt

question 66

Multiple Choice

One mechanism by which viruses may cause cancer is to interrupt the genetic regulatory sequences of repressor proteins. Which of the following types of viruses is most likely to be involved in causing cancer by this mechanism?

• A) +ssRNA viruses
• B) dsRNA viruses
• C) -ssRNA viruses
• D) retroviruses
• E) both +ssRNA and -ssRNA viruses

---

Definitions:

Natural Environment Type Phobia

Anxiety disorders characterized by excessive fear of specific natural environments or situations.

Cortisol Levels

The concentration of cortisol, a hormone produced by the adrenal glands, which increases in response to stress and low blood-glucose concentration.

Hippocampus

A region of the brain that is associated with the formation of memories and navigation.

Heritable Risk Factor

Any attribute, characteristic, or exposure that increases the likelihood of developing a disease or injury, which can be passed from parent to offspring through genes.