Multiple ChoiceAn antibody’s variable region:1. Varies in amino acid sequence to allow different antibodies to bind different antigens. 2. Is located in the hinge and stem regions of an antibody. 3. Is a portion of the light chain of an antibody. 4. Is a portion of the heavy chain of an antibody.98views
Multiple ChoiceGenetic recombination frequently occurs in the body’s B cell population. Why is this advantageous to the immune system?108views