Immunology MCQ mostly asked in the exam

 Immunology MCQ mostly asked in the exam:

1.      What kind of defense barrier provided by mucous membrane of the body?

a)      Physical barrier

b)      Mechanical barrier

c)      Chemical barrier

d)      Biological barrier

2.      Antibodies disappears very quickly in which immunity?

a)      Active immunity

b)      Natural induced immunity

c)      Passive immunity

d)      Autoimmune response

3.      Which portion of antibody structure is occupied by variable chains

a)      Lower region

b)      In between the chains

c)      Upper region

d)      Middle region

4.      How many type of antibodies are present

a)      2

b)      4

c)      5

d)      6

5.      B lymphocytes is related to

a)      Bursa fabricius

b)      Thymus gland

c)      Bacteria

d)      None of these

6.      Plasma cells are formed by?

a)      T lymphocytes

b)      B lymphocytes

c)      Both a and b

d)      None

7.      T lymphocytes are produced by

a)      Bone marrow

b)      Thymus gland

c)      Spleen

d)      Both a and b

8.      Which of the following produces monoclonal antibodies?

a)      Fermentation technology

b)      Hybridoma technology

c)      Genetic engineering

d)      None of these

9.      The cellular  immune response are mediated by

a)      B cells

b)      T cells

c)      Both B and T cells

d)      Epithelial cells

10.  Pasteur developed the vaccination for

a)      Rabies

b)      Anthrax

c)      Chicken cholera

d)      All these

11.  Which of the following is predominant immunoglobulin in the body?

a)      IgA

b)      IgG

c)      IgM

d)      IgE

12.  Instant and immediate protection obtained through

a)      Active immunity

b)      Natural induce immunity

c)      Passive immunity

d)      Vaccination

13.  Which of the following IgG is targeted against polysaccharides of encapsulated bacteria

a)      IgG1

b)      IgG2

c)      IgG3

d)      IgG4

14.  Which of the following is serum hepatitis?

a)      HBV

b)      HCV

c)      HAV

d)      HIV

15.  Antigen binding site on immunoglobulin is located in

a)      Light chain

b)      Fc region of antibody

c)      Heavy chain

d)      Fab region of antibody

16.  Immunity in which lymphocytes recognizes the antigen and microorganisms is called as

a)      Phagocytosis

b)      Cell mediated immunity

c)      Tissue grafting

d)      Humoral immunity

17.  Which of the following is component of immune system?

a)      B lymphocytes

b)      T lymphocytes

c)      Both a, b

d)      Monocytes

18.  Which of the following immunoglobulin is predominant in secondary response?

a)      IgA

b)      IgG

c)      IgM

d)      IgE

19.  The response in which B lymphocytes produces plasma cells that synthesize and release antibodies into the blood

a)      Cell- mediated

b)      Humoral

c)      Photoactic

d)      Auto immune

20.  The smallest molecular weight immunoglobulin is

a)      IgA

b)      IgG

c)      IgM

d)      IgE

21.  Which of the following is a secondary lymphoid organ?

a)      Bone marrow

b)      Hypothalamus

c)      Spleen

d)      Thymus

22.  Which of the following cells types mediates adaptive immune response?

a)      Dendritic cell

b)      Lymphocyte

c)      Macrophage

d)      Natural killer cell

23.  Which of the following cell express IgM as well as IgD on the surface?

a)      Pro B-cells

b)      Pre B-cells

c)      Immature B-cells

d)      Mature B-cells

24.  What is the molecular mechanism being B-cells expressing only one kind of receptor with antigenic specify?

a)      RNA editing

b)      Allelic exclusion

c)      Somatic hypermutation

d)      Alternate polyadenylation