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Professor Lewis Wolpert, biologist, author and regular on TV and radio discussing science and depression – obituary After suffering suicidal depression, with his candour and dry humour Wolpert found himself in demand to talk about his experiences Professor Lewis Wolpert: a knack for explaining scientific ideas Credit: Eleanor Bentall Professor Lewis Wolpert, the developmental biologist and author, who has died of Covid-19 aged 91, was for many the approachable face of science, as a presenter or guest on numerous television and radio programmes. As a biologist Wolpert was best known for the “French flag” model of embryonic development, proposed in a landmark 1969 paper, “Positional Information and the Spatial Pattern of Cellular Differentiation”, in which he used the French tricolor as a visual aid to show how embryonic cells can interpret genetic code to create the same pattern, even when certain pieces of the embryo are removed.

United kingdomSouth africaUniversity collegeNew south walesCity ofLewis wolpertBetty brownsteinFay weldonJill nevilleMary shelleyAlison hawkesFellows of the academy medical sciencesBritish society for cell biologyKing edward schoolHead of the department biologyRoyal institution christmas lecture on frankenstein quest