The two major components of viruses are fat and protein nucleic acid and protein

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Home ‣ Microbiology ‣ Viruses From Animal and Plants Comments

Question
The two major components of viruses are
Options
A. fat and protein
B. nucleic acid and protein
C. carbohydrate and nucleic acid
D. fat and carbohydrate

Correct Answer

nucleic acid and protein

Viruses From Animal and Plants problems

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1. The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture?
Options
A. fibroblasts
B. myoblasts
C. iris epithelial
D. all of these

Discuss

Correct Answer: all of these

2. Negri bodies are found in cells infected with
Options
A. Paramyxoviruses
B. Vaccinia virus
C. Fowlpox virus
D. Rabies virus

Discuss

Correct Answer: Rabies virus

3. Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes
Options
A. DNA gyrase
B. lysosomal protease
C. lysosomal lipase
D. all of these

Discuss

Correct Answer: lysosomal protease

4. Mumps vaccine is prepared from the cultures of
Options
A. chick fibroblasts
B. African green monkey cells
C. healthy calves
D. sheep

Discuss

Correct Answer: chick fibroblasts

5. Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms?
Options
A. Somatic recombination of heavy and light chains
B. Expression of several different capsule types
C. Changing the receptor binding canyon that docks with the host receptor
D. Reassortment of RNA segments from different influenza viruses

Discuss

Correct Answer: Reassortment of RNA segments from different influenza viruses

6. The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called
Options
A. vitropexis
B. viropexis
C. ectodesmata
D. vivopexis

Discuss

Correct Answer: viropexis

7. The transcription of the viral nucleic acid into mRNA is not necessary in case of
Options
A. RNA viruses
B. ds DNA viruses
C. ss DNA viruses
D. all of these

Discuss

Correct Answer: RNA viruses

8. The nucleocapsid is covered by an outer membrane like structure called
Options
A. envelope
B. covering
C. membronocapsid
D. all of these

Discuss

Correct Answer: envelope

9. Which of the following viral infections is associated with the development of hydrophobia?
Options
A. Rabies
B. Influenza
C. Polio
D. Hepatitis

Discuss

Correct Answer: Rabies

10. Which of the following clinical specimens can be used for the demonstration of rabies antigen by direct immunofluorescence antemortem?
Options
A. Salivary smears
B. Corneal smears
C. Conjunctival smears
D. All of these

Discuss

Correct Answer: All of these

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