Phylum proteobacteria is subdivided into α-, β-, δ-and

Home » Microbiology » Microbiology Miscellaneous » Question

Phylum proteobacteria is subdivided into α-, β-, δ-and ε-proteobacteria based on

1. G + C content
2. 23S rRNA sequences
3. tRNA sequences
4. 16S rRNA sequences

Correct Option: D

The phylum Proteobacteria is the largest and most diverse group of bacteria. They have many different shapes and ways of living. Some are free-living, some are parasitic, and others form mutualistic relationships with other organisms, such as those found in the rumen. Many Proteobacteria are responsible for diseases in animals and humans. The largest and most diverse Bacterial phylum is the Proteobacteria. All are Gram-negative and show relationship based on 16s RNA comparison.