An antibody identified in the transfusion service appeared to be reacting stronger following the second exposure to an antigen from a transfusion.The most likely explanation of this observation is:
A) affinity maturation of the immunoglobulin molecule.
B) anamnestic response.
C) isotype switching.
D) All of the above

Question

Quizplus · Accepted Answer

Genetic changes in the variable region,stimulation of memory B cells,and class switching contribute to the increased strength and specificity of an antibody following the second exposure to an antigen.

An Antibody Identified in the Transfusion Service Appeared to Be