- 1(current)
Q. No.How many of the given statements regarding HIV/AIDS are true?
| 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 |
Subtopic: Â AIDS |
 57%
From NCERT
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the most appropriate answer from the options given below :
| 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. |
Subtopic: Â AIDS |
 84%
From NCERT
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What is not correct regarding the pathogenesis of AIDS in humans?
| 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 |
Subtopic: Â AIDS |
 83%
From NCERT
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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 |
Subtopic: Â AIDS |
 56%
From NCERT
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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 |
Subtopic: Â AIDS |
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HIV selectively infects and destroys:
| 1. | CD4 T Lymphocytes | 2. | CD8 T Lymphocytes |
| 3. | T-Suppressor cells | 4. | B-Lymphocytes |
Subtopic: Â AIDS |
 67%
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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 |
Subtopic: Â AIDS |
 94%
From NCERT
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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 |
Subtopic: Â AIDS |
 90%
From NCERT
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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
Subtopic: Â AIDS |
 91%
From NCERT
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- 1(current)
Q. No.
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