Complex sentence: Blood typing and ancient DNA sampling on Egyptian mummies is scant; however, blood typing of dynastic mummies found ABO frequencies to be most similar to modern Egyptians, and some also to northern Haratin populations.
Split into simpler sentences: Blood typing and ancient DNA sampling on Egyptian mummies is scant. However, blood typing of dynastic mummies found ABO frequencies to be most similar to modern Egyptians, and some also to northern Haratin populations.