A U.S. Food and Drug Administration (FDA)–cleared immunochromatographic test produces a red line on the cassette and can presumptively identify which gram-positive Bacillus that is c-hemolytic and morphologically has a "Medusa head" appearance when grown on 5% sheep blood agar?
a. Bacillus subtilis
b. B. cereus
c. B. mycoides
d. B. anthracis
D
An immunochromatographic test is available for B. anthracis, which is c-hemolytic and mor-phologically has a "Medusa head" appearance when grown on 5% sheep blood agar.
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Helicobacter pylori has been associated with:a
emphysema. b. duodenal ulcers. c. peptic ulcers. d. lung cancer. e. skin infections.
Which of the following statements is incorrect regarding patients with AIDS?
A. The highest number of AIDS cases worldwide is in the United States. B. AIDS patients get repeated, life-threatening, opportunistic infections. C. AIDS patients can get unusual cancers and neurological disorders. D. AIDS patients have a CD4 T-cell titer below 200 cells/mm3 of blood. E. AIDS patients have an immunodeficiency.
Who is responsible for building the first simple microscope?
Isaac Newton The Royal Society of London Antoni van Leeuwenhoek Louis Pasteu
Why is the cost of sex sometimes also referred to as the "cost of males"?
a. Males do not contribute genes to the next generation. b. Males do not produce new offspring. c. With finite resources, males take the place of offspring producing females. d. Sperm cells do not contribute any substantial energy resources to the eggs they fertilize. e. B, C, and D.