Skip to content
    Combined Science GCSE

    Punnett square

    What Punnett square means in Combined Science GCSE, as defined for AQA.

    Definitions of Punnett square

    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 Punnett square in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    A diagram showing the four equally likely fertilisation outcomes for a single gene cross, such as AA, Aa, Aa and aa.
    AQA · Genetic inheritance (study guide)
    A grid that predicts the possible allele combinations in offspring by combining the row and column alleles.
    AQA · Genetic inheritance (study guide)

    Topics that use Punnett square

    Related terms

    Using Punnett square 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 Combined Science 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 Combined Science GCSE terms