Q. No.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 |
World wide people infected with Ascaris lumbricoides are estimated to be about:
1. 1 million
2. 10 million
3. 20 million
4. 1 billion
Wernicke’s Encephalopathy is a severe complication of chronic alcoholism. This is caused due to deficiency of:
1. Thiamine
2. Cyanocobalamin
3. Serotonin
4. Dopamine
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 |
Consider the given two statements:
| I: | Rhinovirus, the most common virus causing common cold has a tendency to affect the upper respiratory tract. |
| II: | The mucosa associated lymphoid tissue is not present in the upper respiratory tract. |
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
Consider the given two statements:
| I: | The acquired immune response is called "adaptive". |
| II: | In acquired immunity, pathogen-specific receptors are "acquired" during the lifetime of the organism. |
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.
© 2025 GoodEd Technologies Pvt. Ltd.