| 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 | 
| 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. | 
| 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 | 
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 | 
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 | 
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 | 
The early screening test for HIV infection is :
1. ELISA
2. Western Blot
3. Culture of HIV
4. Detection of opportunistic infections