- 1(current)
Q. No.| I. | AIDS is a congenital disease |
| II. | Syndrome means a group of symptoms |
| III. | HIV is a rotavirus |
| IV. | HIV does not have an envelope |
| V. | HIV can be transmitted by an infected mother to her child through placenta |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
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| Assertion (A): | HIV/Aids infected persons should not be isolated from family and society. |
| Reason (R): | There is a time-lag of a few months to many years [usually 5-10 years] between infection and the appearance of AIDS symptoms. |
| 1. | Both (A) and (R) are false. |
| 2. | Both (A) and (R) are true and (R) explains (A). |
| 3. | Both (A) and (R) are true but (R) does not correctly explain (A). |
| 4. | (A) is true but (R) is false. |
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| I. | HIV first enters into the macrophages. |
| II. | Macrophages are used by HIV as a factory to produce more virus particles. |
| III. | The viral cDNA does not get integrated into any cells in the human body. |
| IV. | HIV also enters the T helper cells and destroys them. |
| V. | The anti-retroviral treatment for AIDS is completely curative. |
| 1. | All except V | 2. | Only III and V |
| 3. | Only I, III and IV | 4. | All |
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Study the diagram given and choose the correct statement:
| 1. | A: Retrovirus replicates outside the cell |
| 2. | B: Viral DNA is produced by the host's enzyme - reverse transcriptase |
| 3. | C: Viral DNA incorporates into the host genome |
| 4. | D: New viral DNA is produced by the infected cell |
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Identify the incorrect statement regarding HIV:
| 1. | It is a retrovirus with a single copy of RNA |
| 2. | It can be transmitted through breastfeeding |
| 3. | It initially uses macrophages as factories for replication |
| 4. | Progression of the infection to AIDS can take up to 10 years |
HIV selectively infects and destroys:
| 1. | CD4 T Lymphocytes | 2. | CD8 T Lymphocytes |
| 3. | T-Suppressor cells | 4. | B-Lymphocytes |
AIDS is caused by HIV. Among the following, which one is not a mode of transmission of HIV?
1. Transfusion of contaminated blood
2. Sharing the infected needles
3. Shaking hands with infected persons
4. Sexual contact with infected persons
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After a few years of being diagnosed with HIV infection, a person develops tuberculosis, toxoplasmosis, diarrhea, and significant weight loss. This is most likely due to:
1. A cytokine storm in the body
2. A decrease in B lymphocytes count
3. A decrease in T helper cells count
4. A side effect of anti-retroviral therapy given
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The early screening test for HIV infection is :
1. ELISA
2. Western Blot
3. Culture of HIV
4. Detection of opportunistic infections
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- 1(current)
Q. No.
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