Certain viruses have been isolated in crytalline form and have been found to be_____________?

Related Mcqs:

1. Viruses can be isolated from clinical samples by cultivation in the following except_______________?

   A. Tissue culture
   B. Embryonated eggs
   C. Animals
   D. Chemically defined media

2. The best way of detecting the presence of viruses in the infected cell – culture is____________?

   A. Cytopathic changes in culture cells
   B. Presence of viral protein in the infected monolayer
   C. Haemagglutination test
   D. Haemagglutination inhibition test

3. Which of the following viruses does not infect salivary glands ?

   A. Echo virus
   B. Hepatitis C
   C. HIV
   D. Orthomyxovirus

4. Which of the following viruses produces both intranuclear and intracytoplasmic inclusion bodies_____________?

   A. Chicken pox
   B. Rabies
   C. Small pox
   D. Measles

5. Which of the following viruses are most likely to cross placenta and cause foetal defect ?

   A. Herpes Simplex
   B. Mumps
   C. Rubella
   D. Papilloma

6. Which of the following viruses appears to be involved in the pathogenesis of Kaposi’s sarcoma_____________?

   A. Human Herpes Virus 3
   B. Human Herpes Virus 1
   C. Human Herpes Virus 8
   D. Human Herpes Virus 4

7. The presence of Which of the following factors in viruses makes protective vaccines a possibility ?

   A. Enzymes
   B. Protein coat
   C. Polysaccharide
   D. Lipids

8. Viruses can be cultured in all except_______________?

   A. Chick embryo
   B. Blood agar
   C. Guinea pigs
   D. Cell culture

9. Salmonella typhi can be isolated at different times from______________?

   A. Feaces
   B. Blood
   C. Urine
   D. All of the above

10. Each of the following viruses possesses an outer lipoprotein envelope except_____________?

    A. Varicella Zoster Virus
    B. Papilloma Virus
    C. Influenza Virus
    D. Human immunodeficiency virus