Final answer:
Somatic hypermutation is a process that introduces random mutations in the rearranged V regions of B cell genes, resulting in a diverse array of antibodies.
Step-by-step explanation:
Somatic hypermutation is a process that occurs in the rearranged V regions of HC (heavy chain) and LC (light chain) genes in B cells. It involves the introduction of random point mutations at a high rate. These mutations can occur almost anywhere in the V regions, leading to the generation of a diverse array of antibodies with different binding specificities.