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    Psychology GCSE

    Genetic polymorphism

    What Genetic polymorphism means in Psychology GCSE, as defined for Pearson Edexcel.

    Definition of Genetic polymorphism

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    Reference: Pearson Edexcel

    A variation in a gene, such as the polymorphism in the 5-HTT gene examined by Caspi et al. (2003).
    Pearson Edexcel · Studies (study guide)

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