Skip to content
    Biology GCSE

    DNA testing and PCR

    What DNA testing and PCR means in Biology GCSE, as defined for OCR.

    Definitions of DNA testing and PCR

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

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

    Reference: OCR

    Laboratory detection of the DNA from the disease causing organism, using DNA extraction, PCR amplification and sequencing to identify the pathogen definitively.
    OCR · Monitoring and maintaining health
    Polymerase chain reaction testing to amplify and identify pathogen genomes with high precision.
    OCR · Monitoring and maintaining health

    Topics that use DNA testing and PCR

    Related terms

    Using DNA testing and PCR 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 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 GCSE terms