You Want to Examine the Structure of the Protein Coat

question 59

Multiple Choice

You want to examine the structure of the protein coat of a virus by microscopy.Which microscope is your best choice,and why?

• A)The scanning electron microscope-it has excellent resolution and magnification,much higher than a light microscope,and can clearly visualize viruses.
• B)An atomic force microscope-this has the highest resolution and magnification of the microscopes we discussed.Here,we want to visualize a subcomponent of the virus particles,so we need the best value for resolution and magnification we can possibly achieve.
• C)A fluorescent microscope-this will let us tag the protein coat with colored dyes in order to visualize it using this light microscope at 1000x.
• D)A bright-field light microscope-of course,we'll need to stain the viruses before we can visualize them against the bright white background at 1000x total magnification.

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Definitions:

Threatening

Expressing or implying a menace or danger, often intended to intimidate or coerce someone into action or inaction.

Rosabeth Moss Kanter

A professor of business at Harvard Business School known for her research on strategy, innovation, and leadership for change.

Symbols of Power

Objects, actions, or titles that represent authority, influence, and command within a given context, signaling status and control.

Coercing

The act of compelling or influencing someone to do something by using force or threats.