Q. No.Which of the following reasons is mainly responsible for graft rejection in transplantation of organs ?
1. Inability of recipient to differentiate between 'self and 'non–self' tissues/cells
2. Humoral immune response only
3. Auto–immune response
4. Cell–mediated response
Give below are two statements :
Statement I: When an infected female Anopheles mosquito bites, it releases gametocytes of plasmodium into the healthy person.
Statement II: The female Anopheles mosquito takes up sporozoites of Plasmodium with blood meal from an infected person, suffering from malaria.
In the light of the above statements, choose the most appropriate answer from the options give below :
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Immuno-suppressants are administered to burn-patients or during organ transplantation to suppress:
| 1. | Innate immunity | 2. | Cytokine storm |
| 3. | Humoral immunity | 4. | Cell-mediated immunity |
| List-I | List-II |
| (a) Cellular barrier | (i) Interferons |
| (b) Cytokine barrier | (ii) Mucus |
| (c) Physical barrier | (iii) Neutrophils |
| (d) Physiological barrier | (iv) HCI in gastric juice |
Choose the correct answer from the options given below :
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (iii) | (i) | (ii) | (iv) |
Which fish selectively feed on larvae of mosquitoes?
| 1. | Gambusia | 2. | Rohu |
| 3. | Clarias | 4. | Exocoetus |
Short-lived immunity acquired from mother to foetus across the placenta or through mother's milk to the infant is categorised as:
| 1. | Active immunity | 2. | Passive immunity |
| 3. | Cellular immunity | 4. | Innate non-specific immunity |
Cancer cells are more easily damaged by radiation than normal cells because they are:
| 1. | Undergoing rapid division | 2. | Different in structure |
| 3. | Non-dividing | 4. | Starved of mutation |
Select the correct statement with respect to disease and immunisation:
| 1. | Injection of snake antivenom against snake bite is an example of active immunisation. |
| 2. | If due to some reason, B-and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen. |
| 3. | Injection of dead/inactivated pathogens causes passive immunity. |
| 4. | Certain protozoans have been used to mass produce hepatitis B vaccine. |
The pathogen Microsporum responsible for ringworm disease in humans belongs to the same Kingdom of organisms at that of:
1. Ascaris, a roundworm
2. Taenia, a tapeworm
3. Wuchereria, a filarial worm
4. Rhizopus, a mould
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