A gram-negative, oxidase-positive diplococcus growing on chocolate agar likely belongs to the genus
A) Neisseria.
B) Escherichia.
C) Mycobacterium.
D) Pseudomonas.

Question

Quizplus · Accepted Answer

Neisseria species are gram-negative, oxidase-positive diplococci that grow well on chocolate agar. Escherichia is a gram-negative rod, while Mycobacterium is an acid-fast bacillus and Pseudomonas is a gram-negative rod that does not typically grow well on chocolate agar.

A Gram-Negative, Oxidase-Positive Diplococcus Growing on Chocolate Agar Likely Belongs