Bacteria in the phylum Firmicutes are distinguished from the phylum Actinobacteria on the basis of
A) their Gram stain reaction.
B) the high G + C content of their DNA.
C) their spiral shapes.
D) the low G + C content of their DNA.
E) the presence of LPS in their membranes.

Question

Quizplus · Accepted Answer

The phylum Firmicutes has a low G + C content of their DNA, while the phylum Actinobacteria has a high G + C content of their DNA. This is the main distinguishing factor between the two phyla.

Bacteria in the Phylum Firmicutes Are Distinguished from the Phylum