Northern Mongoloid

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A trait of some Northern Mongoloids is blue eyes

Northern Mongoloid populations are a subgroup of Mongoloid populations, distinguished by older criteria like appearance and craniology, or dental patterns. Genetically Northern Mongoloids are very unrelated to Southern Mongoloids.

In Cavalli-Sforza's genetic clustering work (1988) South Chinese join Southeast Asians in genetic clustering while the North Chinese genetically cluster with Koreans, Japanese, Ainu, Bhutanese and Tibetans. Xiao and Cavalli-Sforza (2000) find the boundary between Northern and Southern Mongoloids to approximate the Yangtze River, and suggest that their ancestors arrived from Africa via separate routes. [Principal component analysis of gene frequencies of Chinese populations]

Other scientists have suggested that the finding of sharp genetic differences between North and South China is an artifact of using an insufficient number of samples. However, Xiao and Cavalli-Sforza (2000) used a larger number of samples than previous studies.

Footnotes