Antibodies contain two identical_____ chains, and two identical _____ chains. a. right, left b. constant, variable c. heavy, light d. Fab, Fc

Antibodies contain two identical_____ chains, and two identical
_____ chains.
a. right, left
b. constant, variable
c. heavy, light
d. Fab, Fc
by

1 Answer

Answer :

c. heavy, light
by

Related questions

IgG cleaved by papain into (A) Two light and two heavy chains (B) Two Fab and one Fc fragments (C) Two pairs of one light and one heavy chain each (D) One Fab and two Fc fragments

Description : IgG cleaved by papain into (A) Two light and two heavy chains (B) Two Fab and one Fc fragments (C) Two pairs of one light and one heavy chain each (D) One Fab and two Fc fragments

Last Answer : Answer : B

Numerous antibodies can be prepared, against one antigen, each binds to unique epitopes. How is this antibody diversity generated? A- By rearrangements of the DNA encoding the variable regions of the heavy and light chains B- By the combination of different heavy and light chains that form the antigen binding siteC- Antibody proteins can physically change their shape to bind different epitopes D- Both (a) and (b)

Description : Numerous antibodies can be prepared, against one antigen, each binds to unique epitopes. How is this antibody diversity generated? A- By rearrangements of the DNA encoding the variable regions of the heavy ... proteins can physically change their shape to bind different epitopes D- Both (a) and (b)

Last Answer : Both (a) and (b)

An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two variable regions from two heavy chainsd. One variable region from a constant region and one from a variable region..

Description : An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two ... from two heavy chains. d. One variable region from a constant region and one from a variable region.

Last Answer : a. One variable region from a light chain and one from a heavy chain.

Bence-Jones proteins possess all the following properties except (A) They are dimers of light chains (B) Their amino acids sequences are identical (C) Their N-terminal halves have variable amino acid sequences (D) Their C-terminal halves have constant amino acid sequences

Description : Bence-Jones proteins possess all the following properties except (A) They are dimers of light chains (B) Their amino acids sequences are identical (C) Their N-terminal halves have variable amino acid sequences (D) Their C-terminal halves have constant amino acid sequences

Last Answer : Answer : B

The following are true about the Fc regions of an immunoglobulins: a. they can be cleaved from the Fab regions by papain b. they are involved in mast cell binding c. they are involved in the activation of the complement cascade d. all above

Description : The following are true about the Fc regions of an immunoglobulins: a. they can be cleaved from the Fab regions by papain b. they are involved in mast cell binding c. they are involved in the activation of the complement cascade d. all above

Last Answer : all above

The effector function of antibody is performed by (A) Variable region of light chains (B) Constant region of heavy chains (C) Variable regions of light and heavy chains (D) Constant regions of light and heavy chains

Description : The effector function of antibody is performed by (A) Variable region of light chains (B) Constant region of heavy chains (C) Variable regions of light and heavy chains (D) Constant regions of light and heavy chains

Last Answer : Answer : D

Recognition of antigen is the function of (A) Variable region of light chains (B) Variable regions of light and heavy chains (C) Constant region of heavy chains (D) Constant regions of light and heavy chains

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Isoenzymes for a given reaction (A) Have different spedificities (B) Have identical affinities for the same substrate (C) Exhibit different electrophoretic motilities (D) Contain similar ratios of different polypeptide chains

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The maternal _____ antibodies remain with the child for approximately three to six months after birth providing immunity after birth. a. IgA b. IgG c. IgM d. IgD

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Last Answer : b. IgG

Hyperimmune serum is serum with a higher than normal level of _____. a. antigens b. antibodies c. toxins d. immune cells

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Last Answer : b. antibodies

Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant

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Last Answer : a. antibody-rich serum

Antibodies produced by a single clone of myeloma cells are referred to as _____ antibodies. a. Chimeric b. Monoclonal c. Polyclonal d. Hybrid

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Of the five classes of antibodies,_____ and_____ are primary disease fighters, while secretory _____ is found on body (mucosal) surfaces. a. IgA, IgG, IgD b. IgG, IgA, IgM c. IgG, IgD, IgM d. IgG, IgM, IgA

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Last Answer : d. IgG, IgM, IgA

The formation of _____ by_____ directly lyses and kills pathogens. a. Membrane Attack Complexes, complement b. Inflammation, lymph nodes c. antibodies, plasma cells d. Plasma cells, B cells

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Last Answer : a. Membrane Attack Complexes, complement

Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells

Description : Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells

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_____ cells have antibodies on their surface that perform receptor functions by binding to antigen (epitope).a. T b. B c. NK d. A-C are correct

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Acquired immunity usually involves protein receptors on B and T cells that recognize discrete regions of the antigen called _____. a. haptens b. epitopes c. antibodies d. protein receptors

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Last Answer : b. epitopes

In the body's immune system, _____ are the major producers of secreted antibodies. a. macrophages b. plasma cells c. T cells d. B cells

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The _____ class of antibodies is the principal component of a secondary antibody response. a. IgM b. IgD c. IgG d. IgE

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Resistance to disease in the passageways of the respiratory and gastrointestinal tract is dependent on antibodies in the class _____. a. IgG b. IgA c. IgE d. IgM

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The body responds to exotoxins by producing antibodies called _____. a. Adhesins b. Antitoxins c. Toxoids d. A-C Are Correct

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Proteins are chains of _____ that sometimes function as _____. a. monosaccharaides; energy compounds b. lipids; structural materials c. amino acids; enzymes d. disaccharides; enzymes

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The variable region of heavy chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Description : The variable region of heavy chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

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A _____ is a facility that is a self-contained semiconductor assembly line. a) fab b) touch c) rep d) all of the mentioned

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Constant segment genes of heavy chains are present in a cluster in which the first gene on side is (A) Alpha (B) Gamma (C) Delta (D) None of these

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Constant segments of heavy chains are of (A) Five types (B) Six types (C) Seven types (D) Eight types

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The portion of the immunoglobulin molecule that binds the specific antigen is formed by (A) Variable regions of H and L chains (B) Constant region of H chain (C) Constant region of L chain (D) Hinge region

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Total cost is the arithmetic sum of (a) AFC and AVC ; (b) FC and Variable cost ; (c) Marginal cost and variable cost; (d) Sunk cost and fixed cost

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During the course of a cellular hypersensitivity a. Antibodies react with antigens in tissues. b. Serotonin and histamine are released by cells. c. Immune complexes form on blood vessel surfacesd. A skin thickening called an induration may form..

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All the following are associated with hemolytic disease of the newborn except: a. It is one of the most common diseases among Americans. b. It may occur if an Rh (-) female conceives a child who is Rh (+). c. It involves a reaction between red blood cells and antibodies. d. It can be prevented by using rhogam. 16 Which one of the following applies to the

Description : All the following are associated with hemolytic disease of the newborn except: a. It is one of the most common diseases among Americans. b. It may occur if an Rh (-) female conceives a child who ... antibodies. d. It can be prevented by using rhogam. 16 Which one of the following applies to the

Last Answer : b. It may occur if an Rh (-) female conceives a child who is Rh (+).

Desensitization therapy can involve a. The use of blocking antibodies. b. Injections of small amounts of allergen.c. Allergen injections of several months. d. All the above (A—C) are correct.

Description : Desensitization therapy can involve a. The use of blocking antibodies. b. Injections of small amounts of allergen. c. Allergen injections of several months. d. All the above (A—C) are correct.

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A hybridoma cell a. Secretes monoclonal antibodies. b. Presents antigens on its surface. c. Secretes polyclonal antibodies. d. Is an antigen-presenting cell

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In an ELISA, the primary antibody represents a. The patient‘s serum. b. The antibody recognizing the secondary antibody.c. The enzyme-linked (labeled) antibody. d. The antibodies having been washed away.

Description : In an ELISA, the primary antibody represents a. The patient‘s serum. b. The antibody recognizing the secondary antibody. c. The enzyme-linked (labeled) antibody. d. The antibodies having been washed away.

Last Answer : b. The antibody recognizing the secondary antibody.

What serologicaL test requires sheep red blood cells and a preparation of antibodies that recognizes the sheep red blood ceLls? a. ELISA b. Radioimmunoassay c. Immunodiffusion d. Complement fixation test

Description : What serologicaL test requires sheep red blood cells and a preparation of antibodies that recognizes the sheep red blood ceLls? a. ELISA b. Radioimmunoassay c. Immunodiffusion d. Complement fixation test

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The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

Description : The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

Last Answer : c. Neutralization.

The presence of IgM antibodies in the blood indicates a. An early stage of an infection. b. A chronic infection. c. An allergic reaction is occurring. d. Humoral immunity has yet to start.

Description : The presence of IgM antibodies in the blood indicates a. An early stage of an infection. b. A chronic infection. c. An allergic reaction is occurring. d. Humoral immunity has yet to start.

Last Answer : a. An early stage of an infection.

Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? A.The pathogen contains mycolic acid in its cell wall B.The pathogen can live inside macrophages C.Antibodies to the pathogen are protective D.None of these

Description : Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? A.The pathogen contains mycolic acid in its cell wall B.The pathogen can live inside macrophages C.Antibodies to the pathogen are protective D.None of these

Last Answer : C.Antibodies to the pathogen are protective

In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

Description : In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

Last Answer : B.Antigens and antibodies are in optimal proportion

Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? A.The pathogen contains mycolic acid in its cell wall B.The pathogen can live inside macrophages C.Antibodies to the pathogen are protective D.None of these

Description : Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? A.The pathogen contains mycolic acid in its cell wall B.The pathogen can live inside macrophages C.Antibodies to the pathogen are protective D.None of these

Last Answer : C.Antibodies to the pathogen are protective

In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

Description : In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

Last Answer : B.Antigens and antibodies are in optimal proportion

Which of the following statements is false regarding B cells? A- B cells can undergo class switching and produce a different antibody type B- B one marrow stem cells migrate to the thymus and develop into B cells C- B cells synthesize antibodies and put them on their cell surface D- B cells that recognize high concentrations of antigens (self) in the absence of other signals

Description : Which of the following statements is false regarding B cells? A- B cells can undergo class switching and produce a different antibody type B- B one marrow stem cells migrate to the thymus and ... D- B cells that recognize high concentrations of antigens (self) in the absence of other signals

Last Answer : B one marrow stem cells migrate to the thymus and develop into B cells

Spherical bacterial cells in chains would be a referred to as a _______ arrangement. a. Vibrio b. Streptococcus c. Staphylococcus d. Tetrad

Description : Spherical bacterial cells in chains would be a referred to as a _______ arrangement. a. Vibrio b. Streptococcus c. Staphylococcus d. Tetrad

Last Answer : b. Streptococcus

IgM possesses (A) Two light chains and two heavy chains (B) Four light chains and four heavy chains (C) Six light chains and six heavy chains (D) Ten light chains and ten heavy chains

Description : IgM possesses (A) Two light chains and two heavy chains (B) Four light chains and four heavy chains (C) Six light chains and six heavy chains (D) Ten light chains and ten heavy chains

Last Answer : Answer : D

The variable region of light chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Description : The variable region of light chains has (A) One hypervariable region (B) Two hypervariable regions (C) Three hypervariable regions (D) Four hypervariable regions

Last Answer : Answer : C

The immunoglobulins are classified on the basis of (A) Light chains (B) Heavy chains (C) Carbohydrate content (D) Electrophoretic mobility

Description : The immunoglobulins are classified on the basis of (A) Light chains (B) Heavy chains (C) Carbohydrate content (D) Electrophoretic mobility

Last Answer : Answer : B

Immunoglobulins are characterized by their (A) Heavy chains (B) Molecular weight (C) Light chains (D) Electrophoretic behaviour

Description : Immunoglobulins are characterized by their (A) Heavy chains (B) Molecular weight (C) Light chains (D) Electrophoretic behaviour

Last Answer : Answer : A

Bence-Jones protein is (A) An immunoglobulin (B) A dimer of heavy chains (C) A dimer of light chains (D) A dimer of one heavy and one light chains

Description : Bence-Jones protein is (A) An immunoglobulin (B) A dimer of heavy chains (C) A dimer of light chains (D) A dimer of one heavy and one light chains

Last Answer : Answer : C

Immunoglobulins are classified on the basis of (A) Type of light chains (B) Type of heavy chains (C) Types of light and heavy chains (D) Molecular weight

Description : Immunoglobulins are classified on the basis of (A) Type of light chains (B) Type of heavy chains (C) Types of light and heavy chains (D) Molecular weight

Last Answer : Answer : B

Which of the following statement(s) is/are true concerning the antibody response to an invading antigen? a. All antibodies are composed of one type of heavy and one type of light protein chain b. The carboxyl terminus of the heavy chain is the antigen binding site c. Antibody of the immunoglobulin G class is the initial antibody produced in response to an antigenic stimulus d. Immunoglobulins A, D, and E play an active role in the circulating humoral response

Description : Which of the following statement(s) is/are true concerning the antibody response to an invading antigen? a. All antibodies are composed of one type of heavy and one type of light protein chain b. ... stimulus d. Immunoglobulins A, D, and E play an active role in the circulating humoral response

Last Answer : Answer: a Humoral defenses consist of antibody (immunoglobulin; Ig) and complement. All Ig classes (IgM, IgG, IgA, IgE, IgD) and IgG subclasses are composed of one type (M, G, A, E, D ... exist in smaller amounts in the circulation and do not appear to play a major role as host defense components

The variable region of light chains is the (A) N-terminal quarter (B) N-terminal half (C) C-terminal quarter (D) C-terminal half

Description : The variable region of light chains is the (A) N-terminal quarter (B) N-terminal half (C) C-terminal quarter (D) C-terminal half

Last Answer : Answer : B