An occasional serious complication of herpes simplex-1 is
A. paralysis.
B. shingles.
C. myocarditis.
D. kidney failure.
E. encephalitis.
Answer: E
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A 26-year-old woman has an odorous vaginal discharge, lower abdominal pain, and difficulty urinating. Vaginal secretions are collected and sent to the laboratory for examination 3 hours af-ter collection. No motile organisms are observed on the wet preparation; however, T. vaginalis is suspected. Which one of the following statements explains this discrepancy?
a. The infection is most likely bacterial; therefore a Gram stain should have been performed. b. The specimen should have been refrige-rated before examination; consequently, the organism was compromised. c. The time between collection and the mi-croscopic examination was prolonged, resulting in loss of motility. d. No discrepancy is present; this organism in nonmotile.
Chromosomes other than those involved in sex
determination are known as a. nucleosomes. b. hematosomes. c. alleles. d. autosomes. e. liposomes.
In what way are a human and a crab similar?
A. Both have muscles that pull against rigid skeletons. B. Vertebrates and arthropods are deuterostomes. C. Both have closed circulatory systems. D. Both have a continuous growth pattern.
All of the following diseases are caused by arbovirus EXCEPT
A) St. Louis encephalitis. B) eastern equine encephalitis. C) West Nile encephalitis. D) primary amebic meningoencephalitis (PAM). E) None of the answers is correct; all of these diseases are caused by arbovirus.