What problems would arise if a person had a hereditary deficiency that resulted in an inability to present antigens to Tc cells? What would the problems be if the person had a deficiency in presenting antigen to Th1 cells? To Th2 cells? To all T cells? What molecules might be deficient in each situation? Could a person having any one of these deficiencies survive in a normal environment? Explain for each.
Answer to relevant QuestionsAntibodies of the IgA class are probably more prevalent than those of the IgG class. Explain this and define the benefits this may have for the host. Polymorphism implies that each different MHC protein binds a different peptide motif. For the MHC class I polymorphisms, how many different MHC proteins are expressed in an individual? By the entire human population? Polymorphism implies that each different MHC protein binds a different peptide motif. However, for the MHC class I proteins, only 6 peptide motifs can be recognized in an individual, whereas over 6000 motifs can be ...Identify six mechanisms responsible for antibiotic resistance. A blood culture is positive for Staphylococcus epidermidis. Explain the finding. Is it likely that the patient has S. epidermidis bacteremia? Prepare a list of possibilities and questions for a discussion with the physician ...
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