A B cell produces IgM molecules that recognize an antigenic determinant on an influenza virus.After several days, the cell begins to produce IgG molecules that recognize the same antigenic determinant.This process is called

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The process described is called class switching, where a B cell changes the class of immunoglobulin it produces from IgM to IgG while still recognizing the same antigenic determinant. This occurs through a process of genetic recombination and is important for the immune response to effectively combat infections. Activation refers to the process of stimulating a B cell to become fully functional, while RNA splicing and gene mutation are not directly related to this process. Autoimmunity refers to a situation where the immune system mistakenly targets self-antigens, which is not the case here.

A B Cell Produces IgM Molecules That Recognize an Antigenic