Under What Conditions Does a CD4⁺ T Cell Bind to an Antigen

question 68

Multiple Choice

Under what conditions does a CD4⁺ T cell bind to an antigen?

• A)only if this antigen is presented on the surface of a B cell
• B)only if this antigen is in a complex with a class II MHC protein
• C)only if this antigen is presented on the surface of a T cell
• D)only if this antigen is in a complex with a class III MHC protein

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