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11. |
In a virus, the virion consists of: |
A. |
Capsid and DNA |
B. |
Capsid and RNA |
C. |
Capsid and both nucleic acids |
D. |
None of these |
Answer: Option C
Explanation:
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12. |
The enzymes helping a virus to penetrate into host cell by dissolving its wall is: |
A. |
Nuclease |
B. |
Cellulase |
C. |
Neuroaminidiase |
D. |
Phosphorylase |
Answer: Option C
Explanation:
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13. |
Which of the following characters justify the non-living nature of viruses: |
A. |
Non-cellular structure of viruses |
B. |
Absence of metabolism and enzymes |
C. |
Property of being crystallized and stored in the bottles |
D. |
All of these |
Answer: Option D
Explanation:
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14. |
Which of the following characters justify the living nature of viruses: |
A. |
They can multiply within host cells |
B. |
They have capability of mutations |
C. |
They can synthesize proteins for forming capsid |
D. |
All of these |
Answer: Option D
Explanation:
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15. |
Term bacteriophage is given to: |
A. |
A bacteria which is parasite on viruses |
B. |
A virus which is a parasite on bacterium |
C. |
Both (a) and (b) |
D. |
None of these |
Answer: Option A
Explanation:
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16. |
"Smallest virus is 10m in size while largest known virus is 350m, whether this statement is: |
A. |
Correst |
B. |
Wrong |
C. |
Partially wrong |
D. |
None of these |
Answer: Option A
Explanation:
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17. |
"TMV (Tobacco Mosaic Virus) is rod whaped while Polio and Influenza viruses are spherical" whether this statement is: |
A. |
TRUE |
B. |
FALSE |
C. |
Partially false |
D. |
None of these |
Answer: Option A
Explanation:
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18. |
"Core" in the virus is made up of: |
A. |
Cellulose |
B. |
Nucleic acids |
C. |
Plasma membrane |
D. |
Nuclear membrane |
Answer: Option B
Explanation:
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19. |
Protective sheath in virus is called: |
A. |
Capsid |
B. |
Plasma membrane |
C. |
Sarcolemma |
D. |
None of these |
Answer: Option A
Explanation:
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20. |
Which is first known human viral disease: |
A. |
Polio |
B. |
Yellow fever |
C. |
Influenza |
D. |
Typhoid |
Answer: Option A
Explanation:
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