Viruses, Like Many Good Pathogens, Have Adapted to Survive in Their

question 21

Multiple Choice

Viruses, like many good pathogens, have adapted to survive in their hosts.Which of the following scenarios would be MOST favorable to viral transmission and long-term survival of the viral species?

• A)Virus X enters a host cell, produces many progeny viruses (virions), and lyses the host cell.
• B)Virus X enters the host cell and merges viral DNA with the host DNA so that the virus is copied into all progeny host cells.
• C)Virus X enters the host cells, merges viral DNA with the host DNA until the host cell is stressed, and then begins to produce many virions eventually lysing the host cell.
• D)Virus X enters the host cell and consistently makes virions at a low level so that all host cell functions are not disrupted.
• E)Virus X enters the host cell, makes many progeny virions, and releases virions through exocytosis so that each virion is wrapped in the host cell plasma membrane.The host cell will eventually die or be targeted by the immune system for apoptosis.

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Definitions:

Principal Investment

The initial amount of money invested, before any earnings or interest.

Simple Interest

A method of calculating the interest charge on a loan or financial investment based on the initial principal and a fixed interest rate over time.

Interest Rate

The proportion, typically expressed as a percentage, at which interest is charged on a loan or paid on savings.

Like Terms

Terms that have the same variables raised to the same power, which can be combined by adding or subtracting the coefficients.