Viruses Require Host Cell's Machinery to Make Copies of Themselves

question 45

Multiple Choice

Viruses require host cell's machinery to make copies of themselves. However, some viruses that infect humans require mechanisms that do not normally occur in human cells. Which of the following describes how the viruses can replicate in human cells?

• A) The virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.
• B) The viral genome codes for specialized enzymes not found in the host cells.
• C) The virus can enter these cells but new viruses will not be made until an environmental change triggers a switchover.
• D) Viruses can stay in a quiescent state until the host cell evolves this ability.

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Definitions:

Indifference Curve

A set of points, each point representing a combination of goods X and Y, all of which yield the same total utility.

Marginal Utility

The supplementary contentment or advantage received from the consumption of one more unit of a product or service.

Total Utility

The total satisfaction received by a consumer from consuming a certain quantity of goods or services.

Labor Supply Curve

A graphical representation showing the relationship between the wage rate and the quantity of labor that workers are willing to offer at different wage rates.