Cancer-Fighting Drugs Are Usually Given in Combination to Target Several

question 136

Multiple Choice

Cancer-fighting drugs are usually given in combination to target several different stages of the cell cycle.Which statement best explains why this might be a better approach than use of a single drug?

• A) Cancers often have multiple mutations in different cells of the tumor, and some of these mutations might affect different parts of the cell cycle.
• B) A single drug approach might not pick the correct drug on the first try, so trying many at once saves time.
• C) Cancer-fighting drugs are not very potent, so many are needed at the same time.
• D) Cancer cells constantly change, and multiple drugs can overcome those changes.
• E) None of the above; this is not a better approach and is not well thought out.

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Definitions:

Operant Conditioning

An educational method where behavior intensity is altered by either rewards or penalties.

Insight

The ability to gain a clear and deep understanding of a situation or concept, often leading to a breakthrough or solution.

Habituation

A psychological learning process wherein there is a decrease in response to a stimulus after being repeatedly exposed to it over time.

Crepuscular

Pertaining to animals that are active primarily during twilight, i.e., at dawn and dusk.