PALO ALTO, Calif., Nov. 20, 2025 (GLOBE NEWSWIRE) -- For millions of Americans in the African diaspora, genealogical ties and records were severed by the transatlantic slave trade, creating a 'brick wall' for those seeking to know their full heritage. Today, 23andMe Research Institute announced a landmark expansion of its genetic ancestry reports and features, unveiling more than 250 high-resolution Genetic Groups across Africa. This significant update provides members with African heritage the most detaile ...