Homework Answers
Classical or conventional dendritic cells are responsible for induction of T cell responses against most of antigens.
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Question 13 0.25 pts There are two different major classes of dendritic cells, which class is...
The transporter in antigen processing genes encode subunits of a heterodimer pump that transports peptides from...
The transporter in antigen processing genes encode subunits of a heterodimer pump that transports peptides from the cytosol into the endoplasmic reticulum, where they can associate with newly translated Class la chains O B-2 microglobulin. Proteosomes. Immunoglobulin molecules. Class Il a and B chains. Question 20 5 pts Soluble proteins are examples of: Bone marrow dependent antigens. Bone marrow independent antigens., Thymus dependent antigens. Thymus independent antigens. Good food. The features of bound peptide fragments isolated from different class molecules...
Adaptive Immunity: Second Line of Defense—Cellular Defenses The T-cell receptors and CD4 and CD8 molecules interact...
Adaptive Immunity: Second Line of Defense—Cellular Defenses The T-cell receptors and CD4 and CD8 molecules interact with major histocompatibility complex (MHC) proteins. MHC proteins are found on most cells of the body. There are two variations, or classes, of MHC proteins. MHC class I is expressed on the surface of most cells of the body such as skin cells, liver cells, and others. Should a cell become infected with a virus, viral antigens are processed in the cells and expressed...
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC...
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC I, but not MHC II, is necessary for T cells to kill cells presenting endogenous antigen MHC I, but not MHC II, primarily present exogenous antigens to CD8+ T cells MHC I, but not MHC II, is necessary for T cells to activate B cells MHC II, but not MHC I, primarily present endogenous antigens to CD4+ T cells Question 14 3 pts In...
please answer all 4 questions :) Question 7 3 pts Which of the following occur in...
please answer all 4 questions :)
Question 7 3 pts Which of the following occur in both B cells and T cells? o isotype switching O somatic recombination o alternative splicing to produce different isoforms of the receptor o alternative splicing to produce a secreted form of the receptor o somatic hypermutation Question 8 3 pts Multiple factors that increase antigen receptor diversity also increase formation of non- productive alleles. Which of the following would generate a non-productive allele? Select...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
Question 7 3 pts Which of the following normally occurs after B cell encounter with its...
Question 7 3 pts Which of the following normally occurs after B cell encounter with its antigen? Select all correct answers. Antibody production Class switch recombination VIDJ recombination Junctional diversification Question 8 3 pts What type(s) of MHC molecules are present on antigen-presenting cells? Both MHC I and MHC II Neither MHC I nor MHC II MHC II only MHC I only
This pathway to complement activation can be initiated by several different signals including the properdin/factor P...
This pathway to complement activation can be initiated by several different signals including the properdin/factor P activation pathway The classical pathway The alternative pathway Lectin pathway All of the above The mechanism that permits Ig to be synthesized in either a membrane-bound or secreted form is: Allelic exclusion Codominant expression The one-turn/two-turn joining rule Differential RNA processing Which of the following allows for recombination in the V(D)J coding regions? IL-2b TdT RAG-½ All of the above Generation of combinatorial diversity...
Question 13 0.25 Immunity is the type of host defense mediated by secreted for protection against...
Question 13 0.25 Immunity is the type of host defense mediated by secreted for protection against extracellular microbes and their toxins bodies this Humoral Cell-mediated Complement Cytokine Question 14 0.25 pts This type of antibody response is described as _ when a follicular B cell antibody binds with a protein antigen, which then results in isotype switching, production of high affinity antibodies, and long-lived plasma cells. T-independent T-dependent B-independent B-dependent
please answer all 4 questions Question 11 3 pts A B-cell may be activated by: O...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
All the answers please,. Question 23 (2 points) How many Fab fragments are found on one...
All the answers please,. Question 23 (2 points) How many Fab fragments are found on one IgG antibody? Question 23 options: A) 1 B) 3 C) 2 D) 4 E) 10 Question 24 (2 points) Which of the following is more likely to be loaded with endogenous (intracellular) peptide? Question 24 options: A) MHC class II B) MHC class I C) CD28 D) T cell receptor Question 25 (2 points) Which antibody can cross epithelial layers to enter the intestinal...
The transporter in antigen processing genes encode subunits of a heterodimer pump that transports peptides from the cytosol into the endoplasmic reticulum, where they can associate with newly translated Class la chains O B-2 microglobulin. Proteosomes. Immunoglobulin molecules. Class Il a and B chains. Question 20 5 pts Soluble proteins are examples of: Bone marrow dependent antigens. Bone marrow independent antigens., Thymus dependent antigens. Thymus independent antigens. Good food. The features of bound peptide fragments isolated from different class molecules...
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC I, but not MHC II, is necessary for T cells to kill cells presenting endogenous antigen MHC I, but not MHC II, primarily present exogenous antigens to CD8+ T cells MHC I, but not MHC II, is necessary for T cells to activate B cells MHC II, but not MHC I, primarily present endogenous antigens to CD4+ T cells Question 14 3 pts In...
please answer all 4 questions :)
Question 7 3 pts Which of the following occur in both B cells and T cells? o isotype switching O somatic recombination o alternative splicing to produce different isoforms of the receptor o alternative splicing to produce a secreted form of the receptor o somatic hypermutation Question 8 3 pts Multiple factors that increase antigen receptor diversity also increase formation of non- productive alleles. Which of the following would generate a non-productive allele? Select...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
Question 7 3 pts Which of the following normally occurs after B cell encounter with its antigen? Select all correct answers. Antibody production Class switch recombination VIDJ recombination Junctional diversification Question 8 3 pts What type(s) of MHC molecules are present on antigen-presenting cells? Both MHC I and MHC II Neither MHC I nor MHC II MHC II only MHC I only
Question 13 0.25 Immunity is the type of host defense mediated by secreted for protection against extracellular microbes and their toxins bodies this Humoral Cell-mediated Complement Cytokine Question 14 0.25 pts This type of antibody response is described as _ when a follicular B cell antibody binds with a protein antigen, which then results in isotype switching, production of high affinity antibodies, and long-lived plasma cells. T-independent T-dependent B-independent B-dependent
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
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