Skip to content
    Biology A (Salters-Nuffield) A-Level

    Allele frequency

    What Allele frequency means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

    Definition of Allele frequency

    Check what you remember

    Read the wording for your board, then hide it and explain Allele frequency in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: Pearson Edexcel

    How common an allele is in a population, which can change progressively across generations in response to environmental conditions.
    Pearson Edexcel · Topic 5: On the Wild Side

    Topics that use Allele frequency

    Related terms

    Using Allele frequency in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Biology A (Salters-Nuffield) questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Biology A (Salters-Nuffield) A-Level terms