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Chapter:

120+ Immunology Solved MCQs

in Microbiology

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Agriculture (BSc agri) .

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Chapter: Immunology
51.

Plasma cells are the end cells of

A. T-cell
B. β-cells
C. Killer cells
D. Nk-cells
Answer» B. β-cells
discuss
52.

Basophils have receptors for antibodies

A. IgG
B. IgA
C. IgM
D. IgE
Answer» D. IgE
discuss
53.

Because of denaturat ion, ant igens become functionless, these are called:

A. Cross-reactive antigens
B. Epitopes
C. Hidden epitopes
D. Forssman antigens
Answer» C. Hidden epitopes
discuss
54.

Capacity of antigen to breakdown into small fragments eachwith a single epitopic region is known as

A. Solubility
B. Froeignness
C. Denaturation
D. None of these
Answer» A. Solubility
discuss
55.

Antigenic specificity is due to

A. Chemical complexity
B. Solubility
C. Steric configuration
D. All of these
Answer» C. Steric configuration
discuss
56.

Antibodies are

A. Protein
B. Glycoproteins
C. Phospholipids
D. None of these
Answer» B. Glycoproteins
discuss
57.

General purpose antibody is

A. IgA
B. IgG
C. IgM
D. IgD
Answer» B. IgG
discuss
58.

Antibody present in colostrums is

A. IgG
B. IgA
C. IgM
D. IgE
Answer» B. IgA
discuss
59.

Which antibody is called millionaire molecule?

A. IgA
B. IgM
C. IgG
D. IgD
Answer» B. IgM
discuss
60.

IgE is discovered by

A. Ishizaka
B. Porter
C. Richet
D. None of these
Answer» A. Ishizaka
discuss
61.

Antigen-antibody reactions are

A. Reversible
B. Irreversible
C. Specific
D. Both a and b
Answer» D. Both a and b
discuss
62.

Serological reactions are useful for

A. Detection of antigens
B. Detection of antibodies
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
63.

For the separation of antigens the method used is

A. Immunoelectrophoresis
B. Flocculation
C. Agglutination
D. None of these
Answer» A. Immunoelectrophoresis
discuss
64.

Counter immunoelectrophoresis is useful for detection of

A. One antigen/antibody
B. Two antigens/antibody
C. More than two
D. None of these
Answer» A. One antigen/antibody
discuss
65.

When a particular antigen is mixed with antibody in the presence of an electrolyte at suitable temperature and pH the particles are clumped, this is called:

A. Precipitation
B. Agglutination
C. Electrophoresis
D. CIE
Answer» B. Agglutination
discuss
66.

Toxins and viruses can be detected by

A. Precipitation
B. Agglutination
C. Neutralisation
D. None of these
Answer» C. Neutralisation
discuss
67.

Which is most antigenic?

A. Exotoxin
B. Endotoxins
C. Viruses
D. All of these
Answer» A. Exotoxin
discuss
68.

Shick test is used for the detection of

A. Diphtheria
B. T.B.
C. Cholera
D. Typhoid
Answer» A. Diphtheria
discuss
69.

Secondary function of complements are

A. Haemolysi
B. Phagocytosis
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
70.

Very effective, less time consuming and at a time so many samples can be detected by

A. ELISA
B. CFT
C. Neutralization
D. Agglutination
Answer» A. ELISA
discuss
71.

â-cells are involved in

A. Humoral immunity
B. Cell-mediated immunity
C. Active immunity
D. Passive immunity
Answer» A. Humoral immunity
discuss
72.

Innate immunity is

A. Specific
B. Non-specific
C. Active
D. Passive
Answer» B. Non-specific
discuss
73.

Innate immunity is developed by

A. Mechanical barriers
B. Chemical barriers
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
74.

Acquired immunity is

A. Natural
B. Artificial
C. Active & Passive
D. All of these
Answer» D. All of these
discuss
75.

Acquired immunity can be developed by

A. Natural mean
B. Artificial means
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
76.

Immediate type hypersensitivity reactions are

A. Type-I
B. Type-II
C. Type-III
D. All a, b and c
Answer» D. All a, b and c
discuss
77.

Immediate type of hypersensitivity reactions are mediated by

A. T-cell
B. β-cells
C. Mast cells
D. Macrophages
Answer» B. β-cells
discuss
78.

Example for cell-mediated immunity are

A. Tuberculin type
B. Contact dermatitis
C. Granulomatous
D. All of these
Answer» D. All of these
discuss
79.

Mountax reaction is used for detection of

A. T
B. b. Diphtheria
C. Cholera
D. None of these
Answer» A. T
discuss
80.

All the antibodies produced from a â-cell are having

A. Similar specificity
B. Different specificities
C. Similar size
D. None of these
Answer» A. Similar specificity
discuss
81.

Hybridoma formation in hybridoma technique is from

A. Spleen cell – Myeloma cell
B. Spleen cell – Spleen cell
C. Myeloma cell – Myeloma cell
D. None of these
Answer» A. Spleen cell – Myeloma cell
discuss
82.

Anthrax vaccine is prepared by

A. Attenuated bacilli
B. Killing the bacilli
C. Live bacilli
D. None of these
Answer» A. Attenuated bacilli
discuss
83.

Attenuated, oral poliomyelitis vaccine is

A. BCG
B. Measles vaccine
C. Sabin vaccine
D. TAB vaccine
Answer» C. Sabin vaccine
discuss
84.

Killed, polio vaccine is

A. Sabin vaccine
B. Salk
C. BCG
D. TAB
Answer» A. Sabin vaccine
discuss
85.

Measles vaccine is given to children at the age of

A. 1 year
B. 7 months
C. between 9 months and 10 years
D. None of these
Answer» C. between 9 months and 10 years
discuss
86.

Pertussis vaccine is

A. Heat killed
B. Formalin killed
C. Attenuated
D. live
Answer» B. Formalin killed
discuss
87.

DPT is

A. Triple vaccine
B. Double vaccine
C. Tetanus toxoid
D. All of these
Answer» A. Triple vaccine
discuss
88.

DPT, is used as vaccine for

A. Diphtheria
B. Pertussis vaccine
C. Tetanus toxoid
D. All of these
Answer» D. All of these
discuss
89.

DPT is given to children at the age of 16- 24 months, as the dose is

A. 0.5 ml at intervals of 4 weeks
B. A booster dose of 0.5 ml
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
90.

If more than one kind of immunizing agent is included in the vaccine, it is

A. Cellular vaccine
B. Recombinant vaccine
C. Mixed vaccine
D. Toxoid vaccine
Answer» C. Mixed vaccine
discuss
91.

Vacc ines are prepared from k i l led microbes, they are

A. Inactivated (killed) vaccine
B. Attenuated vaccines
C. Autogenous vaccine
D. None of these
Answer» A. Inactivated (killed) vaccine
discuss
92.

Vaccines used against viral infections are

A. Measles and Mumps vaccine
B. Cholera vaccine
C. Typhoid vaccine
D. Anti-rickettsial vaccine
Answer» A. Measles and Mumps vaccine
discuss
93.

If the microbes used in the vaccine are obtained from patient, they are

A. Anti viral vaccines
B. Anti bacterial vaccines
C. Autogenous vaccines
D. None of these
Answer» C. Autogenous vaccines
discuss
94.

Vaccines prepared from toxins and chemicals are

A. Cellular vaccines
B. Sub-cellular vaccines
C. Attenuated vaccines
D. Heterologous vaccines
Answer» B. Sub-cellular vaccines
discuss
95.

Example for live vaccine is

A. Rubella & BCG
B. Polio & TAB
C. Diphtheria & Tetanus
D. Hepatitis A & Rabies
Answer» A. Rubella & BCG
discuss
96.

DPT is given for the prevention of

A. Diphtheria, Tetanus
B. Diphtheria, Pertusis
C. Diphtheria, Tetanus & pertusis
D. None of these
Answer» C. Diphtheria, Tetanus & pertusis
discuss
97.

The live vaccines are available against the following viruses, except:

A. Influenza
B. Measles
C. Rabies
D. Polio
Answer» C. Rabies
discuss
98.

HIV can be transmitted through

A. Blood
B. s*men
C. Vaginal fluid
D. All of these
Answer» D. All of these
discuss
99.

Animals are naturally immune to infection caused by

A. V. Cholera
B. S.typhosa
C. Both a and b
D. None of these
Answer» C. Both a and b
discuss
100.

The immunity acquired by inoculation of living organism of attenuated virulence is

A. Artificial active immunity
B. Passive immunity
C. Natural active immunity
D. Local immunity
Answer» A. Artificial active immunity
discuss

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