Antibodies produced by a single B cell are all identical to one another.

Question

Quizplus · Accepted Answer

This is because each B cell has a single type of B cell receptor (BCR) on its surface that recognizes a specific antigen. When the B cell encounters its antigen, it undergoes clonal expansion and produces a large number of identical B cells, each of which produces antibodies that recognize the same antigen. This is known as a monoclonal antibody response.

Antibodies Produced by a Single B Cell Are All Identical