Multiple Choice
Which statement about the proteobacteria is false?
A) All groups of proteobacteria have retained the photoautotrophic nutritional mode.
B) The proteobacteria include some nitrogen-fixing genera.
C) Proteobacteria include many species of Gram-negative photoautotrophs that use light-driven reactions to metabolize sulfur.
D) Proteobacteria cause major human diseases, including cholera and bubonic plague.
E) The eukaryotic mitochondrion was derived from a proteobacterium.
Correct Answer:

Verified
Correct Answer:
Verified
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