A Microbiologist Suspects a Strain of Staphylococcus Aureus Is Resistant

question 61

Multiple Choice

A microbiologist suspects a strain of Staphylococcus aureus is resistant to methicillin.What would be the best approach to test this suspicion?

• A)Perform a Gram stain.
• B)Sequence the chromosome looking for resistance genes.
• C)Calculate the doubling time for the bacteria.
• D)Inject the bacteria into a host animal and look for disease symptoms.
• E)Add methicillin to the growth plates.

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Definitions:

Compaction

Compaction is the process of applying force to compress soil or material, which increases density and stability, but can affect water infiltration and root growth.

Primary Succession

The process of habitat colonization and ecosystem development in an area where no community previously existed, such as on bare rock.

Soil Formation

The process by which weathering of rock and organic interactions lead to the development of soil layers or horizons, essential for plant growth.

Lichens

Lichens are symbiotic organisms composed of fungi and either algae or cyanobacteria, known for their ability to grow on and weather rocks and other surfaces.