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.
Meskipun Luis et al. dalam penelitian terhadap penanda bi-alelik di negara-negara Afrika mendapati perbedaan genetik yang signifikan antara Tutsi dan Hutu, secara keseluruhan perbedaannya tidak besar.