After receiving a blood transfusion, a patient develops signs indicating a cross reaction between incompatible blood types. Which class of immunoglobulins is responsible for these signs?
Immunoglobulins that are the first antibody type to be produced and secreted, following initial exposure to an antigen, are the ________ antibodies.
Besides suppressor T cells, some ________ also help suppress immune function and shorten the duration of the immune response.
The portions of an antigen's exposed surfaces to which its specific antibody binds are regions called
B)the constant segments of the light and heavy chains.