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990+ Microbiology Solved MCQs

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
651.

The character acquired by the cell due to recombination is

A. Inheritable
B. Syppressed
C. Dominating
D. Heritable
Answer» D. Heritable
discuss
652.

T-cells are produced from

A. Bonemarrow
B. Thymus
C. Spleen
D. None of these
Answer» B. Thymus
discuss
653.

Antibodies are produced from

A. T-cell
B. â-cells
C. NK cells
D. Eosinophils
Answer» B. â-cells
discuss
654.

Incomplete antigens are called

A. Immunogen
B. Epitomes
C. Haptens
D. Paratope
Answer» C. Haptens
discuss
655.

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
discuss
656.

The parts which filter lymph are

A. Lymph node
B. Spleen
C. Thymus
D. Bone marrow
Answer» A. Lymph node
discuss
657.

The primary cells involved in immune response are

A. NK-cell
B. K-cells
C. Lymphocytes
D. None of these
Answer» C. Lymphocytes
discuss
658.

Plasma cells are the end cells of

A. T-cell
B. β-cells
C. Killer cells
D. Nk-cells
Answer» B. β-cells
discuss
659.

Basophils have receptors for antibodies

A. IgG
B. IgA
C. IgM
D. IgE
Answer» D. IgE
discuss
660.

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
661.

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
662.

Antigenic specificity is due to

A. Chemical complexity
B. Solubility
C. Steric configuration
D. All of these
Answer» C. Steric configuration
discuss
663.

Antibodies are

A. Protein
B. Glycoproteins
C. Phospholipids
D. None of these
Answer» B. Glycoproteins
discuss
664.

General purpose antibody is

A. IgA
B. IgG
C. IgM
D. IgD
Answer» B. IgG
discuss
665.

Antibody present in colostrums is

A. IgG
B. IgA
C. IgM
D. IgE
Answer» B. IgA
discuss
666.

Which antibody is called millionaire molecule?

A. IgA
B. IgM
C. IgG
D. IgD
Answer» B. IgM
discuss
667.

IgE is discovered by

A. Ishizaka
B. Porter
C. Richet
D. None of these
Answer» A. Ishizaka
discuss
668.

Antigen-antibody reactions are

A. Reversible
B. Irreversible
C. Specific
D. Both a and b
Answer» D. Both a and b
discuss
669.

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
670.

For the separation of antigens the method used is

A. Immunoelectrophoresis
B. Flocculation
C. Agglutination
D. None of these
Answer» A. Immunoelectrophoresis
discuss
671.

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
672.

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
673.

Toxins and viruses can be detected by

A. Precipitation
B. Agglutination
C. Neutralisation
D. None of these
Answer» C. Neutralisation
discuss
674.

Which is most antigenic?

A. Exotoxin
B. Endotoxins
C. Viruses
D. All of these
Answer» A. Exotoxin
discuss
675.

Shick test is used for the detection of

A. Diphtheria
B. T.B.
C. Cholera
D. Typhoid
Answer» A. Diphtheria
discuss
676.

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
677.

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
678.

â-cells are involved in

A. Humoral immunity
B. Cell-mediated immunity
C. Active immunity
D. Passive immunity
Answer» A. Humoral immunity
discuss
679.

Innate immunity is

A. Specific
B. Non-specific
C. Active
D. Passive
Answer» B. Non-specific
discuss
680.

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
681.

Acquired immunity is

A. Natural
B. Artificial
C. Active & Passive
D. All of these
Answer» D. All of these
discuss
682.

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
683.

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
684.

Immediate type of hypersensitivity reactions are mediated by

A. T-cell
B. β-cells
C. Mast cells
D. Macrophages
Answer» B. β-cells
discuss
685.

Example for cell-mediated immunity are

A. Tuberculin type
B. Contact dermatitis
C. Granulomatous
D. All of these
Answer» D. All of these
discuss
686.

Mountax reaction is used for detection of

A. T
B. b. Diphtheria
C. Cholera
D. None of these
Answer» A. T
discuss
687.

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
688.

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
689.

Anthrax vaccine is prepared by

A. Attenuated bacilli
B. Killing the bacilli
C. Live bacilli
D. None of these
Answer» A. Attenuated bacilli
discuss
690.

Attenuated, oral poliomyelitis vaccine is

A. BCG
B. Measles vaccine
C. Sabin vaccine
D. TAB vaccine
Answer» C. Sabin vaccine
discuss
691.

Killed, polio vaccine is

A. Sabin vaccine
B. Salk
C. BCG
D. TAB
Answer» A. Sabin vaccine
discuss
692.

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
693.

Pertussis vaccine is

A. Heat killed
B. Formalin killed
C. Attenuated
D. live
Answer» B. Formalin killed
discuss
694.

DPT is

A. Triple vaccine
B. Double vaccine
C. Tetanus toxoid
D. All of these
Answer» A. Triple vaccine
discuss
695.

DPT, is used as vaccine for

A. Diphtheria
B. Pertussis vaccine
C. Tetanus toxoid
D. All of these
Answer» D. All of these
discuss
696.

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
697.

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
698.

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
699.

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
700.

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

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