NEET and AIPMT NEET Zoology Human Health and Disease MCQ Questions Solved


The major histocompatibility complex is a :
1. series of complement-enhanced reactions to antigens
2. group of antigens, coded by a family of genes, on the surface of body cells
3. form of autoimmunity 
4. the major cause of cancer 

MHC, in humans, are also called as Human Leukocyte Antigen. They are vital in organ transplantations. The genes in humans are located on chromosome 6 an exhibit codominance.

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Which human worm infestation are we talking about?

I. In socio-economic impact on the human race, it is second only to Malaria.

II. The worm larva enters the human body by penetrating the skin

III. The worm requires snails as an intermediate host.

IV. In developing countries, it is a common cause of anaemia in children.

(1) Elephantiasis

(2) Bilharziasis

(3) Cysticercosis

(4) Plague

(2) This is also called as Schistosomiasis [infection by human blood fluke]

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Malignant tertain malaria is caused by Plasmodium :
1. Vivax
2. ovale
3. malariae
4. falciparum

Answer : 4
Read page 147 , Xll NCERT

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The pathogens responsible for causing elephantiasis are transmitted to a healthy person through:
1. Droplet
2. Female mosquito vector 
3. Contaminated food and water 
4. Sexual contact 

Answer: 2
Read page 149, Xll NCERT

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Interferons are secreted by:
1. Liver
2. Spleen
3. Virus infected cells
4. Lymphocytes

 

(3) Read page 151, XII NCERT

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The type of immunity responsible for graft rejection by a recipient body is 
1. Innate immunity 
2. Humoral immunity 
3. Cell mediated immunity 
4. Either 2 or 3 

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Which of the following is used in the production of the recombinant Hepatitits B vaccine?
(a) Yeast
(b) Microsporum 
(c) E coli
(d) Streptococcus

Answer : 1

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The class of antibodies involved in the allergic reaction is:
1. Ig A
2. Ig D
3. Ig E
4. Ig G

(3) Read page 153, XII NCERT

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The immune-deficiency becomes marked once the HIV starts destroying 
1. Macrophages
2. T helper cells
3. B lymphocytes
4. Natural killer cells 

Answer 2
Read page 156, Xll NCERT

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The cells of the malignant tumors exhibit 
1. Metastasis 
2. Contact inhibition 
3. High differentiation 
4. Slow proliferation 

Answer: 1
Read page 157, Xll NCERT

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