Aftering digesting a pathogen, macrophages ______.   A. Produce MHC II proteins which are bound to the pathogenic antigens B. Interact with CD8 T cells C. Directly activate cytotoxic T cells D. All of the above E. A and B only

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Q: a)  5 nuclear RNA polymerases   b)  3 nuclear RNA polymerases . c)  6 nuclear RNA polymerases…

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A: Note: “Since you have posted multiple questions, we will provide the solution only to the first…

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Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.