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 is contaminated.
C)The incubation temperature was incorrect.
D)The culture medium must be selective.
E)The culture medium must be differential.

Question

Quizplus · Accepted Answer

The presence of two different species, Staphylococcus aureus and Staphylococcus epidermidis, in the same culture suggests that the culture is contaminated with more than one type of bacteria.

A Microbiologist Inoculates Staphylococcus Aureus into a Culture Medium