Which of the Following Methods is Categorized as a Direct

Question

Which of the following methods is categorized as a direct test in order to analyze a specimen?
A)catalase test
B)Gram stain
C)phage typing
D)antimicrobic sensitivity
E)production of gas

Accepted Answer

The Gram stain is a direct test used to analyze a specimen by directly observing the bacteria's cell wall characteristics under a microscope.