You Have Isolated a Bacterium That You Believe to Be

question 54

Multiple Choice

You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch's postulates?

• A) Determine the shape of the bacterial cells.
• B) Inject the bacteria into a healthy frog.
• C) Isolate the bacterium from a sick frog.
• D) Show that the bacterium is not present in healthy frogs.
• E) Grow a pure culture of the bacterium outside the frog.

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Definitions:

Impeaching

The process of questioning the credibility or integrity of a witness, evidence, or public official, often in a legal or legislative context.

Unreliable

Lacking consistency or trustworthiness in accuracy, performance, or character.

Witness Statement

A document containing the narrative of a witness's observation or experience relevant to a legal case.

Investigation Plan

A structured and strategic outline used by investigators to gather, assess, and analyze information pertinent to a case or situation.