Immunology FYBSc Microbiology MCQs Set-2

microbiology mcqs

1:Test used for AIDS is 

(a) Widal test 
(b) ELISA 
(c) Agglutination 
(d) CFT

Answer:(b) ELISA 

2:Antibody having high valency is 

(a) IgG
(b) IgA 
(c) IgD 
(d) IgM

Answer:(d) IgM

3:Intensity of attraction between antigen and antibody molecule is known as 

(a) Affinity
(b) Avidity 
(c) Reaction 
(d) None of these

Answer:(a) Affinity

4:Active immunity is induced by 

(a) Infection 
(b) Placental transfer of antibodies 
(c) Injection of antibodies 
(d) Injection of gamma- globulins

Answer:(a) Infection 

5:Pasteur developed the vaccines for 

(a) Anthrax 
(b) Rabies 
(c) Chicken cholera 
(d) All of the above

Answer:(d) All of the above

6:Delayed type of hypersensitivity is seen in 

(a) Penicillin allergy 
(b) Contact dermatitis 
(c) Arthus reaction 
(d) Anaphylaxis

Answer:(b) Contact dermatitis 

7:The following are used for the preservation of viruses, except 

(a) Freezing (–20°C–70°C) 
(b) Lyophilization 
(c) Ether 
(d) Formaldehyde

Answer:(c) Ether 

8:Antibody formation depends on 

(a) Age of the person 
(b) Amount of antigen 
(c) Well being of the person 
(d) All of the above

Answer:(d) All of the above

9:Local immunity is important in 

(a) Influenza 
(b) Allergy 
(c) Polio 
(d) All of these

Answer:(d) All of these

10:Role of magnesium in vaccines is 

(a) Adjuvant
(b) Stabilizer 
(c) Conditioner 
(d) All of these

Answer:(b) Stabilizer 

11:Immunity is life long following

(a) Diphtheria 
(b) Tetanus 
(c) Measles 
(d) Yellow fever

Answer:(c) Measles 

12:To prepare vaccine for smallpox, the material used by Edward Jenner is 

(a) Smallpox material 
(b) Chicken pox material 
(c) Cow-pox material 
(d) Measles material

Answer:(c) Cow-pox material 

13:During recombination, the strain that donates genetic material frequently with high rate: 

(a) Hfr-Strain 
(b) F+-Strain 
(c) F-Strain 
(d) both a and c

Answer:(a) Hfr-Strain 

14:The character acquired by the cell due to recombination is 

(a) Inheritable 
(b) Suppressed 
(c) Dominating 
(d) Heritable

Answer:(d) Heritable

15:T-cells are produced from 

(a) Bone Marrow 
(b) Thymus 
(c) Spleen 
(d) None of these

Answer:(b) Thymus 

16:Antibodies are produced from 

(a) T-cells 
(b) â-cells 
(c) NK cells 
(d) Eosinophils 

Answer:(b) â-cells 

17: Incomplete antigens are called 

(a) Immunogens 
(b) Epitomes 
(c) Haptens 
(d) Paratope

Answer:(c) Haptens 

18:To be antigen, the chemical molecule (protein) needs

(a) High molecular weight 
(b) Chemical complexity 
(c) Both a and b 
(d) None of these

Answer:(c) Both a and b 

19:The parts which filter lymph are 

(a) Lymph nodes 
(b) Spleen 
(c) Thymus 
(d) Bone marrow

Answer:(a) Lymph nodes 

20:The primary cells involved in immune response are 

(a) NK-cells 
(b) K-cells 
(c) Lymphocytes 
(d) None of these

Answer:(c) Lymphocytes 

21:Plasma cells are the end cells of 

(a) T-cells 
(b) β-cells 
(c) Killer cells 
(d) Nk-cells

Answer:(b) β-cells 

22: Basophils have receptors for antibodies 

(a) IgG 
(b) IgA 
(c) IgM 
(d) IgE

Answer:(d) IgE

23:Because of denaturation, antigens become functionless, these are called: 

(a) Cross-reactive antigens 
(b) Epitopes 
(c) Hidden epitopes 
(d) Forssman antigens

Answer:(c) Hidden epitopes 

24:Capacity of antigen to breakdown into small fragments each with a single epitope region is known as 

(a) Solubility 
(b) Foreignness 
(c) Denaturation 
(d) None of these

Answer:(a) Solubility 

25:Antigenic specificity is due to 

(a) Chemical complexity 
(b) Solubility 
(c) Steric configuration 
(d) All of these

Answer:(c) Steric configuration 

26:Antibodies are 

(a) Proteins 
(b) Glycoproteins 
(c) Phospholipids 
(d) None of these

Answer:(b) Glycoproteins 

27:General purpose antibody is

(a) IgA 
(b) IgG 
(c) IgM 
(d) IgD

Answer:(b) IgG 

28:Antibody present in colostrums is 

(a) IgG 
(b) IgA 
(c) IgM 
(d) IgE

Answer:(b) IgA 

29:Which antibody is called a millionaire molecule? 

(a) IgA 
(b) IgM 
(c) IgG 
(d) IgD

Answer:(b) IgM 

30: IgE is discovered by 

(a) Ishizaka 
(b) Porter 
(c) Richet 
(d) None of these

Answer:(a) Ishizaka