Human Health and Disease · Question 42

Which of the following is correct regarding AIDS causative agent HIV ?

1. HIV is unenveloped retrovirus
2. HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.
3. HIV does not escape but attacks the acquired immune response
4. HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase

Which of the following immunoglobulins does constitute the largest percentage in human milk?

1. IgM
2. IgA
3. IgG
4. IgD

Which of the following diseases is caused by a protozoan?

1. Influenza
2. Babesiosis
3. Blastomycosis
4. Syphilis

Grafted kidney may be rejected in a patient due to -

1. Humoral immune response
2. Cell-mediated immune response
3. Passive immune response
4. Innate immune response

Match each disease with its correct type of vaccine

1. A - (i), B - (ii), C - (iv), D - (iii)
2. A - (iv), B - (iii), C - (ii), D - (i)
3. A - (ii), B - (i), C - (iii), D - (iv)
4. A - (iii), B - (ii), C - (iv), D - (i)

The active form of Entamoeba histolytica feeds upon

1. food in intestine
2. mucosa and submucosa of colon only
3. blood only
4. erythrocytes, mucosa and submucosa of colon

HIV that causes AIDS, first starts destroying

1. thrombocytes
2. leucocytes
3. helper T-lymphocytes
4. B-lymphocytes

Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown below? [Figure]

1. Hallucinogen
2. Stimulant
3. Depressant
4. Pain-killer

At which stage of HIV infection does one usually show symptoms of AIDS ?

1. Within 15 days of sexual contact with an infected person.
2. When the infected retro virus enters host cells.
3. When HIV damages large number of helper T-Lymphocytes.
4. When the viral DNA is produced by reverse transcriptase.

Infection of Ascaris usually occurs by :

1. Tsetse fly
2. mosquito bite
3. drinking water containing eggs of Ascaris
4. eating imperfectly cooked pork