Vibrio cholerae usually exists in a harmless form until:
A)a bacteriophage introduces a gene that codes for the cholera toxin
B)mutations cause the normal proteins to form a toxin causing cholera
C)the lytic cycle destroys the host cells
D)a bacteriophage introduces a gene that codes for the botulism toxin

Question

Quizplus · Accepted Answer

Vibrio cholerae usually exists in a harmless form until a bacteriophage introduces a specific gene that codes for the cholera toxin. This toxin is responsible for the severe diarrheal disease known as cholera. Mutations in the bacteria's normal proteins do not directly cause cholera, and the lytic cycle and introduction of genes for unrelated toxins like botulism toxin do not have any impact on the development of cholera.

Vibrio Cholerae Usually Exists in a Harmless Form Until