Origins of Hutu, Tutsi and Twa adults has a high capacity for lactose digestion, a surprisingly high number for an agrarian people, which Mamdani suggests may be the result of centuries of intermarriage with Tutsi. Bethwell Ogot in the 1988 UNESCO "General History" further notes that the number of pastoralists in Rwanda increased sharply around the fifteenth century. Although Luis et al. (2004) in a more general study on bi-allelic markers in many African countries found a statistically significant genetic difference between Tutsi and Hutu, the overall difference were not large. Modern-day genetic studies of the Y-chromosome generally indicate that the Tutsi, like the Hutu, are
Role of France in the Rwandan genocide Hutu militia members; it accused 33 senior French military and political officials of involvement in the genocide, including then-President Mitterrand and his then general secretary Hubert Védrine, then-Prime Minister Edouard Balladur, then-Foreign Minister Alain Juppé, and his chief aide at the time, Dominique de Villepin. A statement accompanying the release claimed that "French soldiers themselves directly were involved in assassinations of Tutsis and Hutus accused of hiding Tutsis ... French forces committed several rapes on Tutsi survivors", though the latter was not documented in the report. A BBC report commented that French Foreign Minister, Bernard Kouchner, denied French responsibility in