Homework Answers
Option c is the correct option.
Digestion with pepsin produce divalent F(ab')2 fragment and small peptides of Fc fragment. This divalent antigen binding site binds it's antigen with high affinity.
Whereas digestion with mercaptoethanol produce two identical heavy chain and two light chain . Digestion with papain result in two seperate fragments of antigen binding site.
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Treatment of an antibody with which of the following would result in a product with the...
20. Defective function of which of the following proteins will result in failed antigen presentation to...
20. Defective function of which of the following proteins will result in failed antigen presentation to CD8 T cells? a. HLA-DM b. TAP c. Cathepsins d. CD1d 21.True or False: An antibody proteolytically cleaved by pepsin yields a fragment with higher avidity to the cognate antigen than an antibody cleaved by papain. a. True b. False 22.The structure recognized by an antibody (that is, the epitope) is the ________ and the regions of the antibody with significant sequence variation are...
1st attempt Which of the following procedures is NOT used for polyclonal antibody generation? Choose one:...
1st attempt Which of the following procedures is NOT used for polyclonal antibody generation? Choose one: A. Immunization of animal with antigen B. Isolation of blood serum from immunized animal C. Affinity chromatography to isolate desired antibodies D. Fusion of B cells with immortalized tumor cells to form hybridoma
17. Which of the following is responsible for passive immunity? a. Antibody b. Helper T cells...
17. Which of the following is responsible for passive immunity? a. Antibody b. Helper T cells C. Vaccines containing Antigen d. Antigen Presenting Cells e. All of the above
Adaptive Immunity questions 1. In which scanario is the Fragment Crystallizable (Fc) potion not needed? a....
Adaptive Immunity questions 1. In which scanario is the Fragment Crystallizable (Fc) potion not needed? a. Oposonization b. Adaptive Dependent Cell cytotoxicity c. Neutralization d. Antibody activation of C1q 2. Which antibody istotope binds with the highest avidity? a. IgM b. IgE c. IgA d. IgG e. IgD 3. Which part of the antibody enables binding to repeated epitopes of variable distance? a. constant region b. light chain c. heavy chain d. hinge e. none of the above 4. Antibodies:...
1. Opsonization involves: Select one: a. The binding of an antibody to an epitope on a...
1. Opsonization involves: Select one: a. The binding of an antibody to an epitope on a pathogen b. Rearrangement V and J regions of the light chain locus c. Recombination of different V, D, and J regions of the heavy chain locus d. Expression of MHC Class I proteins on all nucleated cells for recognition of self e. Subtle mutation of the heavy and light chain genes to optimize antibody structure 2. Which of these produces and secretes antibodies in...
Identify the two ways chemokines affect the trafficking of lymphocytes from the blood vessel into the...
Identify the two ways chemokines affect the trafficking of lymphocytes from the blood vessel into the infected tissue. a. Strengthen the binding between the integrin and ICAM b. Directly mediate diapedesis c. Facilitate the start of the rolling process by binding to carbohydrates expressed on the immune cell d. Create a gradient for the immune cell to follow after moving through the blood vessel True or False: Macrophages migrate in response to inflammation faster than neutrophils. Which of the following...
QUESTION 1 What is a heterophile antigen? a. an antigen homospecific to only one antibody. b....
QUESTION 1 What is a heterophile antigen? a. an antigen homospecific to only one antibody. b. an antigen that has been modified to bind to more than one antibody. c. an antigen found only on one etiological agent. d. an antigen common to more than one species and whose distribution is unrelated to its phylogenetic distribution. 1 points QUESTION 2 What is an antigen? a protein synthesized and secreted by T lymphocytes (T cells). All bacterial cells are antigens....
help thank you! 28. All of the following would be considered good quality control protocols except:...
help thank you!
28. All of the following would be considered good quality control protocols except: a. storing reagents properly b. allowing the reaction to go as long as possible. c. checking temperatures of water baths, etc. d. running positive and negative controls. 29. What would best characterize an indirect immunofluorescent assay when testing for the presence of a specific antibody in the patient's specimen. a. The anti-human immunoglobulin has a fluorescent label. b. The patient's serum is tagged with...
Which of the following would not typically be used to activate pepsinogen? Select one: a) HCL...
Which of the following would not typically be used to activate pepsinogen? Select one: a) HCL b) Pancreatic proteases c) Pepsin d) All of the above could be used to activate pepsinogen
An atom of which of the following elements has the highest electron affinity? Select one: a....
An atom of which of the following elements has the highest electron affinity? Select one: a. Br b. Cl c. Rb d. As e. Se An atom of which of the following elements is not diamagnetic in the ground state? Select one: a. Rn b. Ca c. Pt d. Cd e. All are diamagnetic. The general electron configuration for the outermost electrons of the halogens is Select one: a. ns2np4 b. ns2np5 c. ns2np6 d. ns2np2 e. ns2np3 What...
1st attempt Which of the following procedures is NOT used for polyclonal antibody generation? Choose one: A. Immunization of animal with antigen B. Isolation of blood serum from immunized animal C. Affinity chromatography to isolate desired antibodies D. Fusion of B cells with immortalized tumor cells to form hybridoma
17. Which of the following is responsible for passive immunity? a. Antibody b. Helper T cells C. Vaccines containing Antigen d. Antigen Presenting Cells e. All of the above
help thank you!
28. All of the following would be considered good quality control protocols except: a. storing reagents properly b. allowing the reaction to go as long as possible. c. checking temperatures of water baths, etc. d. running positive and negative controls. 29. What would best characterize an indirect immunofluorescent assay when testing for the presence of a specific antibody in the patient's specimen. a. The anti-human immunoglobulin has a fluorescent label. b. The patient's serum is tagged with...
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