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Jérôme Lejeune

Vatican City, Jan 21, 2021 / 06:30 am MT (CNA).- Pope Francis recognized on Thursday the heroic virtues of Jérôme Lejeune, the French geneticist who discovered the extra chromosome that causes Down syndrome. The step, announced on Jan. 21, means that Lejeune can now be referred to as “Venerable.” Heroic