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BONUS: You have discovered a new mutagen that causes DNA polymerase to add one adenine at random to a newly synthesized DNA molecule, resulting in the new molecule possessing one more more nucleotide than the template (original) DNA molecule. What type of mutation does this mutagen cause?

Basophils are pro-inflammatory cells because they produce all of the following EXCEPT  

BONUS: Development of the signs and symptoms of Hepatitis B is believed to be the result of

The bactericidal activity of a penicillin-derived antibiotic would be expected to function by

Which of the following does not contribute to the selective toxicity of antimicrobials?

BONUS: Which of the following toxins would be expected to be an enterotoxin?

What is true of most vaccine-preventable viral diseases?

Following treatment of a severe bloodstream infection with high doses of antibiotics, a patient develops a Clostridium dificile infection. Stool samples taken before and after the development of the infection reveal the presence of the bacteria in both samples. Thus, we would expect the source of infection to be:

During the complement cascade, what event occurs as the final step in the formation of the membrane attack complex (MAC)?

 The ability of a virus to replicate within a human cell is controlled by the: