Why Was a Version of Rous's Virus That Did Not

question 12

Multiple Choice

Why was a version of Rous's virus that did not cause cancer important to our understanding of how viruses cause cancer?

• A) This discovery showed that viruses do not actually cause cancer.
• B) The existence of another version of the virus proved that viruses also cause cancer in humans.
• C) The genes in the newly discovered virus were the first known tumor suppressor genes.
• D) Comparison of the different versions of the virus indicated which genes in the virus caused cancer.

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Definitions:

Industry Equilibrium Price

The price at which the quantity of goods supplied equals the quantity of goods demanded in an industry.

Marginal Revenue

The extra revenue received from selling an additional unit of a product or service.

Profit-Maximizing

A process or strategy aiming to achieve the highest possible profits from business operations.

Marginal Revenue Curve

A graphical representation showing how marginal revenue varies as output quantity changes, typically downward sloping for firms in competitive markets.