The occurrence of chills and fever in malaria is associated with:

1. Rupture of hepatocytes during exo-erythrocytic cycle of the parasite
2. Inoculation of the sporozoite by the mosquito bite into humans
3. Release of haemozoin due to rupture of RBCs by the parasite
4. Development of the adult trophozoite in the RBC

Subtopic:  Treatment & Life Cycle of Malaria |
 95%
From NCERT
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All the following diseases can be caused by a bacterial infection except:

1. Dysentery 2. Diphtheria
3. Plague 4. African sleeping sickness
Subtopic:  Introduction |
 82%
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The name Mary Mallon is associated with:

1.  Tuberculosis 2.  Typhoid
3.  Leprosy 4.  Rabies

Subtopic:  Typhoid Fever |
 96%
From NCERT
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Ringworm is not caused by:

1. Trichoderma 2. Microsporum
3. Trichophyton 4. Epidermophyton
Subtopic:  Fungal Infection & Concept of Immunity |
 79%
From NCERT
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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
Subtopic:  Details of Immunity |
 70%
From NCERT
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Interferons are secreted by:

1. Virus infected cells 2. The viruses themselves
3. Natural killer cells 4. T helper cells
Subtopic:  Details of Immunity |
 91%
From NCERT
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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

Subtopic:  Details of Immunity |
 84%
From NCERT
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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
Subtopic:  Details of Immunity |
 63%
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Which of the following is not an auto-immune disorder in humans?

1.  Rheumatoid arthritis 2.  Myasthenia gravis
3.  Emphysema 4.  Graves’ disease
Subtopic:  Allergies & Autoimmunity |
 83%
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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:  AIDS |
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