Nucleic acid in HIV:
1. ss RNA
2. ds RNA
3. ss DNA
4. ds DNA

Subtopic:  AIDS |
 71%
From NCERT
AIPMT - 1998
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Typhoid caused by:
1.  Rickettsiae
2.  Chlamydia
3.  Salmonella typhi
4.  Mycobacterium

Subtopic:  Typhoid Fever |
 98%
From NCERT
AIPMT - 1998
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Histamine is secreted by:

1. Mast cells 2. Fibroblast
3. Histiocytes 4. Plasma cells

Subtopic:  Allergies & Autoimmunity |
 97%
From NCERT
AIPMT - 1998
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Which of the following statements is not true for retroviruses?

1. Retroviruses carry the gene for RNA-dependent DNA polymerase
2. The genetic material in mature retroviruses is RNA
3. Retroviruses are causative agents for certain kinds of cancer in man
4. DNA is not present at any stage in the life cycle of retroviruses.

Subtopic:  AIDS |
AIPMT - 2004
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Mast cells of connective tissue contain:

1. Heparin and histamine

2. Heparin and calcitonin

3. Serotonin and melanin

4. Vasopressin and relaxin

Subtopic:  Allergies & Autoimmunity |
 94%
AIPMT - 2004
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Cancer cells are more easily damaged by radiation than normal cells because they are:

1. Undergoing rapid division 2. Different in structure
3. Non-dividing 4. Starved of mutation
Subtopic:  Cancer |
 88%
AIPMT - 2004
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Which one of the following is not correctly matched:

1. Culex pipiens – Filariasis

2. Aedes aegypti – Yellow fever

3. Anopheles culifaciens – Leishmaniasis

4. Glossina palpalis – Sleeping sickness

Subtopic:  Introduction |
AIPMT - 2004
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HIV infects:
1.  RBC
2.  T – helper cells
3.  B - cells
4.  Basophils

Subtopic:  AIDS |
 94%
From NCERT
AIPMT - 1999
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During injury, mast cells secrete:
1.  Histamine
2.  Heparin
3.  Prothrombin
4.  Antibodies

Subtopic:  Allergies & Autoimmunity |
 78%
From NCERT
AIPMT - 1999
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What is a vaccine:
1.  Treated bacteria, virus & protein
2.  Treated algae
3.  Treated fungi
4.  Treated plasmodium

Subtopic:  Active & Passive Immunity |
 97%
From NCERT
AIPMT - 1999
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