Through the Evolution of Antigenic Variation,pathogens Are Able to

question 96

Multiple Choice

Through the evolution of antigenic variation,pathogens are able to

• A)change the epitopes they express to elude a secondary immune response.
• B)change their genome to elude a secondary immune response.
• C)change the types of RNAs they express to elude a secondary immune response.
• D)change their size to elude a secondary immune response.

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Definitions:

Homology

Refers to the existence of shared ancestry between a pair of structures, or genes, in different species.

Parsimonious

Characterized by extreme or excessive economy or simplicity in approach or methodology, often in scientific theories.

Convergent Evolution

A process whereby organisms not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.

Homologous

Referring to genes, chromosomes, or structures that are similar in position, structure, and evolutionary origin, but not necessarily in function.