A researcher has discovered a new species of bacteria that is remarkably similar to E. coli in its morphology and rRNA sequences. How should the bacteria be classified?
A)as a firmicute
B)as a gram-positive bacterium
C)as a proteobacterium
D)as a cyanobacterium
E)as an acidobacterium

Question

Quizplus · Accepted Answer

E. coli belongs to the phylum Proteobacteria, so a new species that is remarkably similar to E. coli in morphology and rRNA sequences should also be classified as a proteobacterium. A and B are incorrect since they both refer to specific groups within the gram-positive bacteria, which is not necessarily related to the Proteobacteria. D and E are also incorrect since they represent different phyla entirely.

A Researcher Has Discovered a New Species of Bacteria That