Skip to content
    Biology GCSE

    Punnett square

    What Punnett square means in Biology 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 grid that shows every possible combination of alleles from two parents, with one parent's gametes across the top and the other's down the side.
    AQA · Genetic inheritance (study guide)
    A diagram showing the possible allele combinations from two parents, with parental alleles placed along the top and side of the grid.
    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 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