Complex sentence: Turner created a cluster analysis of MMD values in order to test existing hypotheses of origins, concluding that all Southeast Asians, Micronesians, Polynesians, and Jomonese form their own branch and descend from a common ancestor.
Split into simpler sentences: Turner created a cluster analysis of MMD values in order to test existing hypotheses of origins. Turner concluded that all Southeast Asians, Micronesians, Polynesians, and Jomonese form their own branch, in other words, all descend from a common ancestor.