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    Biology A (Salters-Nuffield) A-Level

    Transcription factors

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

    Definitions of Transcription factors

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    Reference: Pearson Edexcel

    Proteins that bind to specific DNA base sequences, often near the promoter of a target gene, to help or block RNA polymerase.
    Pearson Edexcel · Topic 7: Run for your Life
    Proteins that activate or repress specific genes in particular cell lineages in animals.
    Pearson Edexcel · Topic 3: Voice of the Genome

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    Using Transcription factors in the exam

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