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

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

Subtopic:  AIDS |
 62%
From NCERT
NEET - 2016
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MALT constitutes about _______ percent of the lymphoid tissue in the human body.

1. 20% 2. 70%
3. 10% 4. 50%
Subtopic:  Human Immune System |
 82%
From NCERT
NEET - 2017
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In higher vertebrates, the immune system can distinguish between self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self–cells, then it leads to:
1. graft rejection
2. auto-immune disease
3. active immunity
4. allergic response
Subtopic:  Allergies & Autoimmunity |
 89%
From NCERT
NEET - 2016
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Antivenom injection contains performed antibodies while polio drops that are administered into the body contain:
1. harvested antibodies
2. gamma globulin
3. attenuated pathogens
4. activated pathogens
Subtopic:  Active & Passive Immunity |
 71%
NEET - 2016
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Which of the following immunoglobulins constitute the largest percentage in human milk?

1. IgD

2. IgM

3. IgA

4. IgG

Subtopic:  Active & Passive Immunity |
 87%
From NCERT
NEET - 2015
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Grafted kidney may be rejected in a patient due to?

1. Humanol immune response

2. Cell-mediated immune response

3. Passive immune response

4. Innate immune response

Subtopic:  Details of Immunity |
 94%
From NCERT
NEET - 2015
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HIV that causes AIDS first starts destroying:
1. B-lymphocytes 2. leucocytes
3. helper T-lymphocytes 4. thrombocytes
Subtopic:  AIDS |
 91%
From NCERT
NEET - 2015
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The active form of Entamoeba histolytica feeds upon:

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

Subtopic:  Amoebiasis |
NEET - 2015
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Infection of Ascaris usually occurs by:
1. Eating imperfectly cooked pork.
2. Tse - tse fly.
3. mosquito bite.
4. drinking water containing eggs of Ascaris.
Subtopic:  Ascariasis & Filariasis |
 84%
From NCERT
AIPMT - 2013
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The cell-mediated immunity inside the human body is carried out by:
1. B-lymphocytes
2. Thrombocytes
3. Erythrocytes
4. T-lymphocytes
Subtopic:  Details of Immunity |
 83%
From NCERT
AIPMT - 2013
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