Which Part of the Immune System's "Learning System" Is Responsible

question 11

Multiple Choice

Which part of the immune system's "learning system" is responsible for maintaining life-long immunity against measles after a measles infection?

• A)Somatic recombination
• B)Affinity maturation
• C)Clonal expansion
• D)Retention of responding cells

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Definitions:

Resonance Structures

Different Lewis structures of a molecule or ion that depict the same connectivity but differ in the placement of electrons, contributing to the real structure.

Reaction

A process in which substances interact, leading to the formation of new substances.

Steps

A sequence of actions or methodical process to accomplish an end.

Organic Product

A compound or substance that contains carbon atoms bonded to hydrogen or other elements, primarily produced by living organisms but also synthesized in laboratories.