Scientists Know That the Oncogene ErB-2 Over Produces a Growth

question 42

Multiple Choice

Scientists know that the oncogene erB-2 over produces a growth factor and causes all breast cancers.

• A) False. Unfortunately, this is the known cause of only about 30% of breast cancers.
• B) True. And the drug herceptin stops it.
• C) False. The oncogene erB-2 suppresses cell division.
• D) True. erB-2 is the most commonly mutated gene in women.
• E) False. Scientists don't yet know what causes any breast cancers.

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Definitions:

Concrete

A material made from a mixture of broken stone or gravel, sand, cement, and water, which can harden into a strong building material.

Abstract

Pertaining to ideas or concepts that are not concrete or tangible, often requiring thought and interpretation.

Recognizing Irony

The ability to understand when a statement is used to convey a meaning that is opposite to its literal meaning, often for humorous or emphatic effect.

Age

A measure of the time an individual has lived, often used as a key demographic variable.