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
The mechanical carrier of the causative agent of amoebic dysentery is:
| 1. | A protozoan | 2. | House fly |
| 3. | Mosquito | 4. | Rodent |
Aedes aegypti is not a vector for:
| 1. | Dengue | 2. | Chikungunya |
| 3. | Japanese encephalitis | 4. | Yellow fever |
Interferons are secreted by:
| 1. | Single stranded viruses | 2. | Double stranded viruses |
| 3. | Bacteria infected cells | 4. | Virus infected cells |
Secondary lymphoid organs:
| 1. | Are those where immature lymphocytes differentiate |
| 2. | Provide a site of interaction between lymphocytes and antigens |
| 3. | Are formed after birth |
| 4. | Are bone marrow and MALT |
Small masses of lymphatic tissue found throughout the ileum region of the small intestine are called:
| 1. | Paneth cells | 2. | Meissener’s Plexus |
| 3. | Peyer’s patches | 4. | Entero-chromaffin cells |
Steroid abuse in males does not cause:
1. Decrease in size of the prostate
2. Acne
3. Breast enlargement
4. Reduction of testicle size
Identify the incorrectly matched pair regarding Plasmodium, the protozoan responsible for causing malaria in humans:
|
1. |
Cause of malignant tertian malaria |
Plasmodium falciparum |
|
2. |
Paroxysm [clinical features] of malaria |
Release of hemozoin on rupture of RBCs |
|
3. |
Fertilization during the life cycle |
Gut of female anopheles |
|
4. |
Infective stage to mankind |
Trophozoites |
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