A Sample Suspected of Containing Legionella Pneumophila Is Treated with the Dye

question 24

Multiple Choice

A sample suspected of containing Legionella pneumophila is treated with the dye fluorescein isothiocyanate (FITC) ;however,the sample fluoresced a bright apple-green colony after it was processed.Which of the following statements explains this discrepancy?

• A)A technical error may have occurred.
• B)The fluorescent bulb may have malfunctioned.
• C)The results are accurate;no discrepancy is found.
• D)A postanalytical error is to blame.

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Definitions:

Zero Profit

A situation where a firm's total revenues exactly equal its total costs, resulting in no net gain or loss.

Short-run Equilibrium

A state in a market where supply equals demand within a short-term period, leading to a stable price level temporarily.

Monopolistically Competitive

In a monopolistically competitive market, firms sell products that are not perfect substitutes for each other, leading to some degree of market power but with free entry and exit in the long run.

Positive Profit

A financial gain that occurs when the revenues from business activities exceed the expenses, costs, and taxes needed to sustain the operation.