Would You Expect the Number of Virions to Be the Same

question 47

Multiple Choice

Would you expect the number of virions to be the same if you measured them by the plaque assay or by counting using the electron microscope? Why?

• A) Yes-both methods measure the total number of virus particles in a solution.
• B) No-the plaque assay only measures viable virus particles, while the electron microscope cannot distinguish between defective and viable virus.
• C) No-you cannot count virus particles by using a plaque assay. You can only get a relative difference in quantity from one preparation of virus particles to another with this method.
• D) Yes-only fully functioning viruses will be released from a host cell, so the quantified number of virus particles in a plaque assay should be identical to the number of free virus particles counted by electron microscopy.

---

Definitions:

Undifferentiated Marketing

A marketing strategy that does not segment the market, but rather targets the whole market with one offer or message.

Wide Appeal

The characteristic of a product, service, or content that makes it attractive to a broad and diverse range of consumers or audiences.

Strong Competitors

Firms that possess a significant market share, resources, competitive advantage, or influence within an industry.

Marketing Strategies

Comprehensive plans formulated to achieve the marketing objectives of an organization, which include the identification of target markets and the set of actions intended to achieve those goals.