Homework Answers
20. C- MHC-I restricted
21. A. Langerhans cells
22. B. False
23. B. First pregnancy, Rh- mother, Rh+fetus, leads to generation of anti Rh Antibody in mother
24. A. CD4+ Th-2 cells (B cells)
25. B. C1 complement component.........
26. D. C5a
27. B. type I (allergies due to pollens in spring season)
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please answer questions 20-27
Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC...
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC)...
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC) a. CD4 b. TCR c. CD36 d. LFA i. LFA ii. ICAM-1 i. MHC Class II iv. IL2 IV.
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...
Question 5 (2 points) Which is the most appropriate sequence of events in B cell signaling?...
Question 5 (2 points) Which is the most appropriate sequence of events in B cell signaling? Question 5 options: A) Antigen binds BCR, intracellular receptor kinases (such as Fyn, Lyn or Blk) are activated, Syk is recruited to ITAMs on Igα/Igβ. B) Antigen binds BCR, Syk is recruited to ITAMs on Igα/Igβ. intracellular receptor kinases (such as Fyn, Lyn or Blk ) are activated, C) Syk becomes activated, the BCR can now bind an antigen, and intracellular kinases are activated....
ALL THE ANSWERS PLEASE! Pretend you have a disagreement with a surly lab partner some day,...
ALL THE ANSWERS PLEASE! Pretend you have a disagreement with a surly lab partner some day, and as a result of the fray, you have received a scalpel cut to the arm. Your arm rapidly becomes inflamed, and after the course of many days, an infection develops. Luckily, the infection later clears up. Assuming the pathogen responsible was never previously encountered by your immune system, which sequence of events below best fits with what could have happened (not all of...
Please answer the following questions (33-39) Which of the following compounds is released by a virally...
Please answer the following questions (33-39) Which of the following compounds is released by a virally infected cells to warn neighboring cells? A. Interferon B. Gammaglobulin C. C9 D. Endotoxin E. None of the above The epitope binding region of an IgG antibody is… A. Located in the constant region between the two heavy chains B. Located in the variable region between the two ends of the short chains C. Formed between the ends of the heavy and light chain...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!! 1) A patient has inherited two defective genes for...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY 5-1 T cells recognize antigen when the antigen a. forms...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
Please answer both questions. sorry try this please Type 3 mne complex i ty best O...
Please answer both questions.
sorry try this please
Type 3 mne complex i ty best O antibidw i ng in complet activation reginefecto o t de dames e deposition of mallrouble mure complewhich have not been removed by photos, ration by the verorleen C) O cellular damage caused by neutrophilic release of lys enres (D) O All of the above O A B, and D Question 6 0.25 pts This primary immunodeficiency is characterized by the impaired production of major...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
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...
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC) a. CD4 b. TCR c. CD36 d. LFA i. LFA ii. ICAM-1 i. MHC Class II iv. IL2 IV.
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...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
Please answer both questions.
sorry try this please
Type 3 mne complex i ty best O antibidw i ng in complet activation reginefecto o t de dames e deposition of mallrouble mure complewhich have not been removed by photos, ration by the verorleen C) O cellular damage caused by neutrophilic release of lys enres (D) O All of the above O A B, and D Question 6 0.25 pts This primary immunodeficiency is characterized by the impaired production of major...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
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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