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21. |
Which of the following is viral disease: |
A. |
Polio |
B. |
Mumps |
C. |
Rabies |
D. |
All of these |
Answer: Option D
Explanation:
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22. |
Which one of the following is not a viral disease? |
A. |
Polio |
B. |
Common cold |
C. |
Chickenpox |
D. |
Typhoid |
Answer: Option B
Explanation:
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23. |
Nucleic acids form: |
A. |
6% of virus |
B. |
100% of virus |
C. |
50% of virus |
D. |
25% of virus |
Answer: Option A
Explanation:
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24. |
Protein molecules forming capsid in a virus are called: |
A. |
Capsomeres |
B. |
Macromeres |
C. |
Chromomeres |
D. |
None of these |
Answer: Option A
Explanation:
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25. |
A collar-like structure between head and tail as well as an end plate is present in: |
A. |
Bacteria |
B. |
Bacteriophage viruses |
C. |
All viruses other than bacteriophages |
D. |
None of these |
Answer: Option B
Explanation:
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26. |
Which of the following will survive if boiled in a test tube at 100?C: |
A. |
Bacteria |
B. |
Viruses |
C. |
Both (a) and (b) |
D. |
None of these |
Answer: Option B
Explanation:
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27. |
What will happen if capsid of a virus is removed: |
A. |
Will it die |
B. |
Will it germinate |
C. |
Will it remain normal |
D. |
Will it change in nature |
Answer: Option A
Explanation:
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28. |
Which of the following is an interesting feature of viruses: |
A. |
That they occur only inside the bacteria |
B. |
That they behave as plants |
C. |
That they multiply only inside the cytoplasm of host cell |
D. |
That they are made up of proteins only |
Answer: Option C
Explanation:
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29. |
A bacteriophage consists of: |
A. |
Only proteins |
B. |
Carbon and nitrogen |
C. |
DNA |
D. |
Nucleoproteins |
Answer: Option D
Explanation:
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30. |
Which of the following charcters justifies the living nature of viruses: |
A. |
They are only nucleoproteins but without histones |
B. |
They can be crystallized and stored for many years |
C. |
Nucleic acids in them can induce protein synthesis to form capsid |
D. |
All of these |
Answer: Option C
Explanation:
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