Biology A (Salters-Nuffield) A-Level
Antigenic variation
What Antigenic variation means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Antigenic variation
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Reference: Pearson Edexcel
A change in pathogen surface antigens so that existing antibodies and memory cells no longer bind effectively.
Topics that use Antigenic variation
- Topic 6: Immunity, Infection and Forensics (Pearson Edexcel A-Level)
Related terms
- Active immunity
- Agarose gel
- Alternative splicing
- Antibiotic stewardship
- Antibody
- Antigen
- Application of molecular techniques to plants and animals
- Artificial passive immunity
Using Antigenic variation in the exam
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