PCB4233 Launchpad Chapter 1 Questions and Answers | 2026 Update | 100% Correct.

Nobel prizes awarded for topics in immunology in the past two decades include all of the following EXCEPT: the role of dendritic cells in activating the adaptive immune system. the role of gene rearrangement in generating diversity. the role of the major histocompatibility complex in activating T cells. the role of viruses in cervical cancer. All of the above - CORRECT ANSWER-the role of gene rearrangement in generating diversity. The immune system often rejects transplanted tissues because - CORRECT ANSWERit has been selected to eliminate nonself cells. Pattern recognition receptors (PRRs) are NOT described by which of the following? They are encoded in the germline. They show a very high degree of variability. They recognize classes of pathogens. They are expressed by a number of different cell types. They are all of the above. - CORRECT ANSWER-They show a very high degree of variability. Even though cancer develops from our own cells, the immune system can control it in many cases. This can be demonstrated by the fact that: - CORRECT ANSWERindividuals who are immunocompromised are more prone to cancer. The flu vaccine is highly variable in its effectiveness because: - CORRECT ANSWERthe virus mutates quickly. predictions about what genotypes will present are inaccurate. unexpected variants arise. Which of the following is NOT one of the three general categories of immune disorders?None of the above Hypersensitity Autoimmune disease Transplant rejection syndrome Immunodeficiency - CORRECT ANSWER-Transplant rejection syndrome Innate immunity differs from adaptive immunity in all of the following EXCEPT: it is more primitive evolutionarily than adaptive. its receptors are not encoded in the germline. it has been selected to identify broad classes of pathogens. it has been selected to target common pathogens.