Q. No.The 2009 ‘swine flu’ outbreak was due to an Influenza virus strain designated as:
1. H1N1 2. H5N1 3. H2N2 4. H7N9
Which of the following is not a characteristic of HIV?
| 1. | It mutates rapidly developing new strains. |
| 2. | It is a 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. |
Exposure of the DNA to non-ionizing radiation, the UV rays, leads to the formation of:
| 1. | unusual base analogues in the template |
| 2. | A-G, T-C substitutions |
| 3. | deletions of short arms of chromosomes |
| 4. | thymine dimmers |
Interleukin -2 and alpha interferon are showing promise in the treatment of cancers. They are:
| 1. | Immunostimulants | 2. | Phagocytes |
| 3. | Chemotherapeutic agents | 4. | Radiotherapeutic agents |
Artemisinin is a drug that is now a worldwide standard treatment of:
| 1. | Rheumatoid arthritis | 2. | Lung cancer |
| 3. | Malaria | 4. | Plague |
Complement triggers all the following immune functions except:
| 1. | Phagocytosis | 2. | Inflammation |
| 3. | Membrane attack | 4. | Anamnestic response |
Antigen presentation is a process by which the innate immune system:
| 1. | Recruits immune cells to sites of infection |
| 2. | Activates the complement cascade |
| 3. | Activates the adaptive immune system |
| 4. | Acts as a physical and chemical barrier to infectious agents |
Pneumocystis jiroveci is a fungus that causes:
| 1. | Athlete’s foot in sportspersons |
| 2. | Pneumoconiosis in farmers |
| 3. | Liver infections in chronic alcoholics |
| 4. | Pneumonia in immune-compromised persons |
Consider the given two statements:
| I: | The malarial parasite is relatively protected from attack by the body's immune system. |
| II: | The parasite is enveloped in a protective protein and lipopolysaccharide layer. |
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.
Identify the incorrect statement about amphetamines:
| 1. | Amphetamines are synthetic drugs, structurally similar to adrenaline. |
| 2. | They are used to treat morbid obesity and narcolepsy. |
| 3. | They are frequently called “superman” drugs. |
| 4. | They are CNS depressants. |
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