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Home⇒ Medical Science⇒ Biochemistry⇒ Anti bodies
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Monoclonal refers to all of the above [other wrong options] [Discuss in forum] ![]() ![]() a single clone of antibody-producing cells all the antibody molecules which are identical the binding with same antigenic site with identical binding affinities |
Q2 ⇒ Each IgA antibody molecule consists of four polypeptide chain and has two antigen binding site [other wrong options] [Discuss in forum] ![]() ![]() two polypeptide chain and has one antigen binding site three polypeptide chain and has two antigen binding site two polypeptide chain and has two antigen binding site |
Q3 ⇒ Antigenic determinants bind to which portions of an antibody? Variable regions [other wrong options] [Discuss in forum] ![]() ![]() Constant regions Only light chains Only heavy chains |
Q4 ⇒ β-Lymphocytes are often called simply B cells [other wrong options] [Discuss in forum] ![]() ![]() T cells T Lymphocytes none of these |
Q5 ⇒ Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct? Most of these antibodies recognize proteins [other wrong options] [Discuss in forum] ![]() ![]() This diversity is generated from 108 different immunoglobin genes Many of these molecules are self-antigens Most of these antibodies recognize small organic molecules |
Q6 ⇒ Type A blood can be used to donate to type AB individuals [other wrong options] [Discuss in forum] ![]() ![]() can be used to donate to type B individuals contains type B antigens on the surface of red blood cells can always be used to donate to an Rh+ individual |
Q7 ⇒ The humoral immune response relies on the production of soluble proteins called antibodies [other wrong options] [Discuss in forum] ![]() ![]() macromolecules lymphocytes none of these |
Q8 ⇒ A secondary antibody is an antibody that binds to another antibody [other wrong options] [Discuss in forum] ![]() ![]() has been used in prior experiments is synthetically produced is produced in boostered animals |
Q9 ⇒ Papain digest IgG into two Fab fragments and one Fc fragment [other wrong options] [Discuss in forum] ![]() ![]() three Fab fragments and two Fc fragments two Fab fragments and two Fc fragments three Fab fragments and three Fc fragments |
Q10 ⇒ The main function of antibodies is to chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease [other wrong options] [Discuss in forum] ![]() ![]() kill all the foreign bodies generate antigens, thus conferring immunization protect the circulatory system |
Q11 ⇒ Which species lack immunoglobulin light chains? Camels [other wrong options] [Discuss in forum] ![]() ![]() Humans cows Buffalo |
Q12 ⇒ Antibodies of the IgG class all of the above [other wrong options] [Discuss in forum] ![]() ![]() consist of four subunits are glycoproteins are secreted into the bloodstream |
Q13 ⇒ Structures of anti-PCP antibody shows that the tight binding of PCP to the antibody is primarily due to hydrophobic forces [other wrong options] [Discuss in forum] ![]() ![]() electrostatic forces. Van der Waals forces. none of these |
Q14 ⇒ Cleavage of an IgG molecule by a specific protease can produce two Fab fragments and one Fc fragment [other wrong options] [Discuss in forum] ![]() ![]() an antigen-binding site and two constant regions two heavy chain-light chain dimers an inactive mixture of oligopeptides |
Q15 ⇒ Fab fragment has one antigen binding site [other wrong options] [Discuss in forum] ![]() ![]() two antigen binding site one antibody binding site two antibody binding site |
Q16 ⇒ A polyclonal antibody response is produced by several B cells recognizing different pitopes on the same antigen [other wrong options] [Discuss in forum] ![]() ![]() is produced only in response to polymeric antigens occurs during the lag phase of the immune response violates clonal selection |
Q17 ⇒ Which of the following are responsible for immune specificity? Antibodies [other wrong options] [Discuss in forum] ![]() ![]() Antigens T lymphocytes Macrophage |
Q18 ⇒ The immunoglobulin fold is a β-barrel composed of a three- and a four-stranded antiparallel β-sheet [other wrong options] [Discuss in forum] ![]() ![]() found only in IgG molecules both (a) and (b) found six times in the IgG molecule |
Q19 ⇒ Antibodies can be used all of the above [other wrong options] [Discuss in forum] ![]() ![]() for the localization of proteins in the cell for protein purification to catalyze chemical reactions |
Q20 ⇒ Alum is an effective adjuvant because it is immunogenic for T cells [other wrong options] [Discuss in forum] ![]() ![]() disaggregates the antigen. is immunogenic for stem cells slows the release of antigen |
Or |