The bacterium that causes botulism disease is harmless until it:
A) is infected by lytic bacteria.
B) is infected by certain retroviruses.
C) contains a certain prophage DNA.
D) is irradiated by UV radiation.
E) is infected by prions.

Question

Quizplus · Accepted Answer

The bacterium Clostridium botulinum becomes harmful when it contains a prophage DNA that encodes for the botulinum toxin, which is responsible for the disease botulism.

The Bacterium That Causes Botulism Disease Is Harmless Until It