Microorganisms and Disease
Prontosil is

an effective antibacterial when used in animals
not used as an antibacterial agent
an effective antibacterial both in animals as well as in in-vitro cultures
an effective antibacterial when used in in-vitro cultures

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Microorganisms and Disease
Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis?

Diphtheria toxin and edema toxin are ADP ribosylating toxins
Both organisms cause skin and respiratory tract infections
Both organisms are gram-positive spore formers
The most serious disease symptoms are the direct result of toxin action

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