Multiple Choice
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
Correct Answer:

Verified
Correct Answer:
Verified
Q3: All of the following are correct about
Q4: All of the following are correct about
Q5: Once they evolved,the _ forever changed the
Q6: Viruses can enter animal cells by:<br>A)poking holes
Q7: Bats are a healthy carrier for which
Q9: The HIV enzyme,_ manufactures a DNA copy
Q10: In _,atmospheric nitrogen is converted to a
Q11: Viral genomes can be of DNA or
Q12: Scientists suspect that the first macromolecules to
Q13: A type of Archaea,known as _,use hydrogen