Q. No.After a few years of being diagnosed with HIV infection, a person develops tuberculosis, toxoplasmosis, diarrhea, and significant weight loss. This is most likely due to:
1.
A cytokine storm in the body
2.
A decrease in B lymphocytes count
3.
A decrease in T helper cells count
4.
A side effect of anti-retroviral therapy given
Recombinant vaccine used to prevent Hepatitis B contains:
1. killed hepatitis B virus
2. live attenuated hepatitis B virus
3. antigenic polypeptide of hepatitis B virus
4. messenger RNA of yeast
Metastasis shown by malignant tumors:
| 1. | is due to contact inhibition exhibited by cells. |
| 2. | causes cells to remain undifferentiated. |
| 3. | makes cancer cells susceptible to be killed by radiation. |
| 4. | can start secondary tumors at distant sites in the body. |
Anabolic steroids are frequently abused. Their side effects include all of the following except:
| 1. | Masculinization in females |
| 2. | Mood swings and depression in females |
| 3. | Reduction in size of testicles in males |
| 4. | Reduction in size of the prostate in males |
Which of the following is not an auto-immune disorder in humans?
| 1. | Rheumatoid arthritis | 2. | Myasthenia gravis |
| 3. | Emphysema | 4. | Graves’ disease |
Identify the incorrect statement regarding the cell-mediated immune response:
| 1. | It is mediated through the T lymphocytes |
| 2. | A large number of antibodies are secreted by activated T cytotoxic cells |
| 3. | It responds against cancer cells and viral infections |
| 4. | It is responsible for graft rejection |
What word correctly denotes an enhanced reaction of the body's immune system to an antigen which is related to one previously encountered?
| 1. | Booster | 2. | Primary |
| 3. | Anamnestic | 4. | Magnified |
Interferons are secreted by:
| 1. | Virus infected cells | 2. | The viruses themselves |
| 3. | Natural killer cells | 4. | T helper cells |
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