Which of the following would not result from a C. difficile infection?
A) hemolytic uremic syndrome
B) mild diarrhea
C) severe abdominal pain, fever, nausea, and abundant watery diarrhea that may progress to dysentery
D) toxic megacolon
E) pseudomembranous colitis
Answer: A
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Which of the following is not true of type III hypersensitivity?
A. Serum sickness is a systemic response. B. It involves an immune complex reaction. C. Antigen-antibody complexes are deposited in the basement membrane of epithelial tissues. D. It involves production of IgE antibodies. E. The Arthus reaction is a local response.
Which of the following is a polysaccharide?
A) glucose, the chief cellular energy source B) cellulose, the primary component of plant cell walls C) fructose, one of the most important blood sugars D) insulin, the chief blood sugar regulator E) sucrose, one of the most important blood sugars
In each fly species, the entire body segment that gave rise to the original flight wings is missing. The mutation(s) that led to the flightless condition probably affected the ________ genes, making the initial mutants examples of ________.
A) thorax; complete metamorphosis B) exoskeleton; exaptations C) Hox; complete metamorphosis D) thorax; exaptations E) Hox; adaptive radiants
What number is/are naked icosahedral virus(es)?
What will be an ideal response?