A Microbiologist Inoculates Staphylococcus Aureus into a Culture Medium

question 58

Multiple Choice

A microbiologist inoculates Staphylococcus aureus into a culture medium.Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture.What is the most likely explanation?

• A)The microbiologist used too much inoculum.
• B)The culture medium was selective.
• C)The culture medium was differential.
• D)The culture was contaminated.
• E)The incubation temperature was incorrect.

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Definitions:

Community Cohesiveness

The quality of forming a united group, characterized by mutual support, shared values, and a sense of belonging among community members.

Double-masked

In medical studies, a trial in which neither the participants nor the researchers know who belongs to the control group and who belongs to the experimental group.

Placebo

An inert substance or treatment which has no therapeutic effect, used as a control in testing new drugs.

Anxiety

An emotion characterized by apprehension, tension, or discomfort stemming from the anticipation of an unclear result, frequently related to apprehension over what is to come.