Q. No.All the following diseases can be caused by a bacterial infection except:
1.
Dysentery
2.
Diphtheria
3.
Plague
4.
African sleeping sickness
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Which of the following cells can phagocytose microbes only in tissues?
| 1. | Neutrophil | 2. | Natural killer cells |
| 3. | Macrophages | 4. | Monocytes |
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Interferons are secreted by:
| 1. | Virus infected cells | 2. | The viruses themselves |
| 3. | Natural killer cells | 4. | T helper cells |
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What word correctly denotes an enhanced reaction of the body's immune system to an antigen which is related to one previously encountered?
| 1. | Booster | 2. | Primary |
| 3. | Anamnestic | 4. | Magnified |
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Identify the incorrect statement regarding the cell-mediated immune response:
| 1. | It is mediated through the T lymphocytes |
| 2. | A large number of antibodies are secreted by activated T cytotoxic cells |
| 3. | It responds against cancer cells and viral infections |
| 4. | It is responsible for graft rejection |
Which of the following is not an auto-immune disorder in humans?
| 1. | Rheumatoid arthritis | 2. | Myasthenia gravis |
| 3. | Emphysema | 4. | Graves’ disease |
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 |
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