Q. No.Which of the following are the reason(s) for Rheumatoid arthritis? Choose the correct option.
i:
The ability to differentiate pathogens or foreign molecules from self-cells increases.
ii:
Body attacks self cells.
iii:
More antibodies are produced in the body.
iv:
The ability to differentiate pathogens or foreign molecules from self-cells is lost.
1.
i and ii
2.
ii and iv
3.
iii and iv
4.
i and iii
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AIDS is caused by HIV. Among the following, which one is not a mode of transmission of HIV?
| 1. | Transfusion of contaminated blood |
| 2. | Sharing the infected needles |
| 3. | Shaking hands with infected persons |
| 4. | Sexual contact with infected persons |
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'Smack' is a drug obtained from the:
1. latex of Papaver somniferum
2. leaves of Cannabis sativa
3. flowers of Dhatura
4. fruits of Erythroxylum coca
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The substance produced by a cell in viral infection that can protect other cells from further infection is:
| 1. | serotonin | 2. | colostrum |
| 3. | interferon | 4. | histamine |
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Transplantation of tissues/organs to save certain patients often fails due to the rejection of such tissues/organs by the patient. Which type of immune response is responsible for such rejections?
1. auto-immune response
2. humoral immune response
3. physiological immune response
4. cell-mediated immune response
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Antibodies present in colostrum protects the newborn from certain diseases which are of:
| 1. | Ig G type | 2. | Ig A type |
| 3. | Ig D type | 4. | Ig E type |
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Tobacco consumption is known to stimulate the secretion of adrenaline and nor-adrenaline. The component causing this could be:
| 1. | Nicotine | 2. | Tannic acid |
| 3. | Curamin | 4. | Catechin |
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Antivenom against snake poison contains:
1. Antigens
2. Antigen-antibody complexes
3. Antibodies
4. Enzymes
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Which of the following glands is large-sized at birth but reduces in size with aging?
1. Pineal
2. Pituitary
3. Thymus
4. Thyroid
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