Interferons are proteins. In humans they secreted by:
1. Thymus gland
2. B-lymphocytes
3. Viral infected cells
4. Tonsils
Subtopic: Â Details of Immunity |
 90%
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 |
 83%
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 |
 54%
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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Identify the correct statements regarding the life cycle the malarial parasite:
1. I and II only
2. II and III only
3. II and IV only
4. I and III only
| I: | Sporozoites are the infectious form for humans. |
| II: | The parasites initially multiply within the red blood cells and then attack the liver cells. |
| III: | The rupture of RBCs is associated with release of a toxic substance, haemozoin, which is responsible for the chill and high fever recurring every three to four days. |
| IV: | Fertilization occurs in human RBCs |
1. I and II only
2. II and III only
3. II and IV only
4. I and III only
Subtopic: Â Treatment & Life Cycle of Malaria |
 86%
Level 1: 80%+
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