Biochemistry/Biochemistry-Anti Bodies Sample Test,Sample questions

Question:
 
Monoclonal antibodies were first produced by

1.Georges Kohler and Cesar Milstein

2.Sarkar and Sommer

3.Selman Waksman

4. Edward Jenner and Louis Pasteur

Posted Date:-2021-02-25 02:36:08


Question:
 
The human IgG class of antibodies is divided into

1. five IgG classes

2. two IgG classes

3.three IgG classes

4.four IgG classes

Posted Date:-2021-02-25 02:36:08


Question:
 
The immunoglobulin fold is

1. found only in IgG molecules

2. a β-barrel composed of a three- and a four-stranded antiparallel β-sheet

3.both (a) and (b)

4.found six times in the IgG molecule

Posted Date:-2021-02-25 02:36:08


Question:
A polyclonal antibody response

1.is produced only in response to polymeric antigens

2. is produced by several B cells recognizing different pitopes on the same antigen

3.occurs during the lag phase of the immune response

4.violates clonal selection

Posted Date:-2021-02-25 02:36:08


Question:
A secondary antibody is an antibody that

1.has been used in prior experiments

2.is synthetically produced

3.binds to another antibody

4. is produced in boostered animals

Posted Date:-2021-02-25 02:36:08


Question:
Alum is an effective adjuvant because it

1.disaggregates the antigen.

2.is immunogenic for stem cells

3. is immunogenic for T cells

4. slows the release of antigen

Posted Date:-2021-02-25 02:36:08


Question:
Antibodies can be used

1.for the localization of proteins in the cell

2.for protein purification

3.to catalyze chemical reactions

4. all of the above

Posted Date:-2021-02-25 02:36:08


Question:
Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

1.This diversity is generated from 108 different immunoglobin genes

2.Many of these molecules are self-antigens

3.Most of these antibodies recognize proteins

4.Most of these antibodies recognize small organic molecules

Posted Date:-2021-02-25 02:36:08


Question:
Antibodies of the IgG class

1.consist of four subunits

2. are glycoproteins

3.are secreted into the bloodstream

4. all of the above

Posted Date:-2021-02-25 02:36:08


Question:
Antigenic determinants bind to which portions of an antibody?. 

1.Variable regions

2. Constant regions

3.Only light chains

4.Only heavy chains

Posted Date:-2021-02-25 02:36:08


Question:
Cleavage of an IgG molecule by a specific protease can produce

1.an antigen-binding site and two constant regions

2.two heavy chain-light chain dimers

3.an inactive mixture of oligopeptides

4.two Fab fragments and one Fc fragment

Posted Date:-2021-02-25 02:36:08


Question:
Each IgA antibody molecule consists of

1. four polypeptide chain and has two antigen binding site

2.two polypeptide chain and has one antigen binding site

3.three polypeptide chain and has two antigen binding site

4.two polypeptide chain and has two antigen binding site

Posted Date:-2021-02-25 02:36:08


Question:
Fab fragment has

1.one antigen binding site

2. two antigen binding site

3.one antibody binding site

4.two antibody binding site

Posted Date:-2021-02-25 02:36:08


Question:
he humoral immune response relies on the production of soluble proteins called

1. antibodies

2.macromolecules

3.lymphocytes

4. none of these

Posted Date:-2021-02-25 02:36:08


Question:
he main function of antibodies is to

1.kill all the foreign bodies

2.generate antigens thus conferring immunization

3.protect the circulatory system

4.chemically combine with the antigen which induces it inactivate the antigen and protect the body from disease

Posted Date:-2021-02-25 02:36:08


Question:
IgE provides

1.immunity against some parasites

2.complement killings of the cells and phagocytosis

3.secretions in the body

4. all of the above

Posted Date:-2021-02-25 02:36:08


Question:
β-Lymphocytes are often called simply

1.B cells

2.T cells

3.T Lymphocytes

4. none of these

Posted Date:-2021-02-25 02:36:08


Question:
Which of those immunoglobulin classes is mainly found in external secretions?

1.Ig A

2.Ig D

3.Ig M

4.Ig E

Posted Date:-2021-02-25 02:36:08


Question:
Monoclonal refers to

1.a single clone of antibody-producing cells

2.all the antibody molecules which are identical

3.the binding with same antigenic site with identical binding affinities

4. all of the above

Posted Date:-2021-02-25 02:36:08


Question:
Papain digest IgG into

1. two Fab fragments and one Fc fragment

2.three Fab fragments and two Fc fragments

3.two Fab fragments and two Fc fragments

4.three Fab fragments and three Fc fragments

Posted Date:-2021-02-25 02:36:08


Question:
Structures of anti-PCP antibody shows that the tight binding of PCP to the antibody is primarily due to

1. hydrophobic forces

2. electrostatic forces.

3.Van der Waals forces.

4.none of these

Posted Date:-2021-02-25 02:36:08


Question:
Type A blood

1.can be used to donate to type AB individuals

2.can be used to donate to type B individuals

3.contains type B antigens on the surface of red blood cells

4. can always be used to donate to an Rh+ individual

Posted Date:-2021-02-25 02:36:08


Question:
Which of the following are responsible for immune specificity?

1.Antigens

2.Antibodies

3.T lymphocytes

4.Macrophage

Posted Date:-2021-02-25 02:36:08


Question:
Which species lack immunoglobulin light chains?

1.Camels

2.Humans

3.cows

4.Buffalo

Posted Date:-2021-02-25 02:36:08


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