The decrease in the T-lymphocytes count in human blood will result in:
1. Decrease in antigens
2. Decrease in antibodies
3. Increase antibodies
4. Increase in antigens
Subtopic: Â Details of Immunity |
 80%
Level 1: 80%+
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Interferons are proteins. In humans they secreted by:
1. Thymus gland
2. B-lymphocytes
3. Viral infected cells
4. Tonsils
1. Thymus gland
2. B-lymphocytes
3. Viral infected cells
4. Tonsils
Subtopic: Â Details of Immunity |
 89%
Level 1: 80%+
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Tetanus antitoxin(Tetanus toxoid) when injected into the human body it immediately provides:
1. Innate immunity
2. Passive immunity
3. Auto immunity
4. Active immunity
1. Innate immunity
2. Passive immunity
3. Auto immunity
4. Active immunity
Subtopic: Â Active & Passive Immunity |
 82%
Level 1: 80%+
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The principle of vaccination is based on the property of
1. Specificity
2. Diversity
3. Memory
4. Discrimination between 'self' and 'non'self'
1. Specificity
2. Diversity
3. Memory
4. Discrimination between 'self' and 'non'self'
Subtopic: Â Active & Passive Immunity |
 85%
Level 1: 80%+
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Subtopic: Â Drugs & Alcohol Abuse |
Level 3: 35%-60%
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The genes causing cancer are:
1. Structural genes
2. Expressor genes
3. Oncogenes
4. Regulatory genes
1. Structural genes
2. Expressor genes
3. Oncogenes
4. Regulatory genes
Subtopic: Â Cancer |
 95%
Level 1: 80%+
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | Salmonella typhi is a pathogenic bacterium which causes typhoid fever in human beings. |
| II: | These pathogens generally enter the small intestine through food and water contaminated with them |
| III: | The pathogen remains confined to the small intestine. |
| IV: | Intestinal perforation and death may occur in severe cases. |
| V: | Typhoid fever could be confirmed by Widal test. |
2. 3
3. 4
4. 5
Subtopic: Â Typhoid Fever |
 53%
Level 3: 35%-60%
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Which pair of the given bacteria can commonly cause pneumonia in humans?
| 1. | Streptococcus pneumoniae and Staphylococcus aureus |
| 2. | Haemophilus influenzae and Streptococcus pneumoniae |
| 3. | Pneumocystis carinii and Mycoplasma hominis |
| 4. | Streptococcus pyogenes and Bacillus anthracis |
Subtopic: Â Pneumonia & Related Questions |
 96%
Level 1: 80%+
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All the following are bacterial diseases in man except:
1. Dysentery
2. Plague
3. Diphtheria
4. Measles
1. Dysentery
2. Plague
3. Diphtheria
4. Measles
Subtopic: Â Amoebiasis |
 82%
Level 1: 80%+
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Which of the following statements will not be true regarding common cold?
| 1. | Rhino viruses cause the common cold. |
| 2. | Rhino viruses infect the nose and respiratory passage and frequently involve the lungs. |
| 3. | The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache and tiredness. |
| 4. | It spreads though droplets and through contaminated objects. |
Subtopic: Â Common Cold & Malaria Introduction |
 94%
Level 1: 80%+
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