Behavioural geneticist Kathryn Paige Harden discusses with author and journalist Helen Lewis why we're getting it wrong when it comes to genetic inheritance.

Does our refusal to recognise the power of DNA perpetuate the myth of meritocracy?

Drawing on themes from her new book, The Genetic Lottery: Why DNA Matters for Social Equality, Harden reclaims genetic science from the legacy of eugenics and presents a provocative and timely case for how the science of genetics can help create a more just and equal society.