Q. No.Which of the following is not a characteristic of HIV?
1. It mutates rapidly developing new strains.
2. It is retrovirus with two short strands of ss RNA
3. It cannot pass through blood brain barrier
4. It has the unique ability to destroy helper T cells
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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A cancer, virtually diagnostic of AIDS, is :
1. Retinoblastoma
2. Wilm’stomor
3. Kaposi sarcoma
4. Cancer cervix
The most common opportunistic infection associated with AIDS is :
| 1. | Tuberculosis |
| 2. | Pneumocystis carinii pneumonia |
| 3. | Cryptococcal meningitis |
| 4. | Toxoplasma encephalitis |
HIV selectively infects and destroys:
| 1. | CD4 T Lymphocytes | 2. | CD8 T Lymphocytes |
| 3. | T-Suppressor cells | 4. | B-Lymphocytes |
Cancer detection is mainly based on:
| 1. | Radiography | 2. | Ultrasonography |
| 3. | Magnetic resonance imaging | 4. | Histopathology |
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A tumor that invades surrounding tissues is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated. Such a tumor is called a:
| 1. | Benign tumor | 2. | Malignant tumor |
| 3. | Teratoma | 4. | Secondary tumor |
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Methanol is converted to formaldehyde in our bodies. It inhibits mitochondrial cytochrome c oxidase. It also causes blindness. The treatment of methanol toxicity is :
| 1. | Thiamine | 2. | L - Dopa |
| 3. | Ethanol | 4. | Atropine |
Which of the following is not a documented effect of alcoholism?
| 1. | intrauterine growth retardation in the fetus if the pregnant female consumes alcohol |
| 2. | cirrhosis of liver secondary to fatty deposition in the liver |
| 3. | an increase in the secretion of ADH by the supraoptic nucleus leading to retention of urine |
| 4. | gastritis and pancreatitis |
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The part of the brain most commonly affected by the consumption of alcohol is :
| 1. | Medulla oblongata | 2. | Reticular formation |
| 3. | Cerebellum | 4. | Cerebrum |
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