Which is correct about influenza?
A. The virus is grown in poultry eggs for vaccines.
B. Influenza A has a mortality rate of close to 35%.
C. Antigenic shift is a minor change in the viral strain.
D. The virus binds to the intestinal mucosa.
E. The virus is found in swine and cats.
Answer: A
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Which of the following phyla are NOT lophotrochozoans?
A. Platyhelminthes B. Mollusca C. Annelida D. Rotifera E. Nematoda
An example of a selective medium for gram-positive organisms is:
a. MacConkey agar. b. blood agar. c. colistin and nalidixic acid. d. thioglycollate broth.
A disaccharide is composed of two monosaccharides joined by a glycosidic linkage
__________________Indicate whether the statement is true or false.
A positive Quellung reaction, or capsular swelling, is confirmatory for:
A. Neisseria meningitidis. B. Staphylococcus aureus. C. Streptococcus pyogenes. D. Branhamella (Moraxella) catarrhalis. E. Streptococcus pneumoniae.