"Clonal selection" and "clonal expansion"
A) imply that each individual lymphocyte produces a single antibody.
B) describe how a single lymphocyte proliferates in a population of effector cells.
C) depend on an antibody recognizing a specific epitope.
D) explain how an antigen stimulates the production of matching antibodies.
E) All of the answer choices are correct.

Question

"Clonal selection" and "clonal expansion"
A) imply that each individual lymphocyte produces a single antibody.
B) describe how a single lymphocyte proliferates in a population of effector cells.
C) depend on an antibody recognizing a specific epitope.
D) explain how an antigen stimulates the production of matching antibodies.
E) All of the answer choices are correct.

Quizplus · Accepted Answer

Clonal selection and clonal expansion are fundamental concepts in immunology that describe how the immune system responds to specific antigens. Each lymphocyte is indeed programmed to produce a unique antibody (A), which is the basis for the specificity of the immune response. When an antigen is recognized by a specific lymphocyte, that lymphocyte is selected and proliferates into a population of effector cells that can combat the antigen, which is the process of clonal expansion (B). This process is dependent on the recognition of specific epitopes by antibodies (C), and it is the mechanism by which the presence of an antigen stimulates the production of matching antibodies (D). Therefore, all the statements are correct in describing aspects of clonal selection and clonal expansion.

"Clonal Selection" and "Clonal Expansion