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NR 507 Week 1 Quiz 2 ; Questions and Answers with Explanation

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NR 507 Week 1 Quiz 2 ; Questions and Answers with Explanation

  1. What of the following remains a significant cause of morbidity and mortality worldwide?
  2. Which statement about vaccines is true?
  3. After sexual transmission of HIV, a person can be infected yet seronegative for _____ months.
  4. Cells in _____ may act as a reservoir in which HIV can be relatively protected from antiviral drugs.
  5. Once they have penetrated the first line of defense, which microorganisms do neutrophils actively attack, engulf, and destroy by phagocytosis?
  6. Which statement is true about fungal infections?
  7. In a type II hypersensitivity reaction, when soluble antigens from infectious agents enter circulation, tissue damage is a result of
  8. Hypersensitivity is best defined as a(n)
  9. A person with type O blood is likely to have high titers of anti-___ antibodies.
  10. During an IgE-mediated hypersensitivity reaction, what causes bronchospasm?
  11. Deficiencies in which element can produce depression of both B- and T-cell function?
  12. What is the mechanism in type III hypersensitivity reactions?
  13. What is the mechanism in type II hypersensitivity reactions?
  14. Exhaustion occurs if stress continues and _____ is not successful nr 507 week 1 quiz
  15. What effect does estrogen have on lymphocytes?
  16. Stress-induced norepinephrine results in
  17. During a stress response, increased anxiety, vigilance, and arousal is … by
  18. Intestinal polyps are benign neoplasms and the first stage in development of colon cancer. These findings support the notion that
  19. Which of the viruses below are oncogenic DNA viruses?
  20. By what process does the ras gene convert from a proto-oncogene to an oncogene?
  21. Many cancers create a mutation of ras. What is ras?
  22. Which of the following represents the correct nomenclature for benign and malignant tumors of adipose tissue, respectively?
  23. In chronic myeloid leukemia (CML), a piece of chromosome 9 fuses to a piece of chromosome 22. This is an example of which mutation of normal genes to oncogenes?
  24. Tobacco smoking is … with cancers of all of the following except
  25. What congenital malformation is commonly … to acute leukemia in children?
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