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What is the definition of an antigen? a protein produced by plasma cells that attacks pathogens a type of white blood cell a part of the membrane attack complex of the complement system a form of immune
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What is the definition of an antigen? a protein produced by plasma cells that attacks pathogens a type of white blood cell a part of the membrane attack complex of the complement system a form of immune deficiency anything the immune system recognizes as foreign to the body?

User Zulko
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an antigen is a foreign substance to your immune system that is recognized by the BCRs or TCRs glycoproteins on the exterior surfaces of B and T cells
User Jorelli
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