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    Biology A (Salters-Nuffield) A-Level

    Genotype-environment interaction

    What Genotype-environment interaction means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

    Definitions of Genotype-environment interaction

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    Reference: Pearson Edexcel

    Phenotype is the observable characteristic produced by the interaction of genotype with the environment, so environmental factors can alter gene expression and therefore observable characteristics.
    Pearson Edexcel · Topic 3: Voice of the Genome
    Environmental factors also affect polygenic phenotypes, so the observed phenotype results from genotype interacting with environment, not genotype alone.
    Pearson Edexcel · Topic 3: Voice of the Genome

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