The origin of the mainstream of Koreans is the agricultural people of the central and northern China.

 It has been argued that the origin of the Korean mainstream is the "Central and Northern Chinese Agricultural People" (Seoul = Yonhap News), and that it is highly genetically related to the Chinese Han Chinese and Japanese. Controversy is expected as this reverses the northern (Mongolia) single origin theory, which was widely used in academia as a major theory, as well as the results of existing studies that show that Koreans are genetically very close to Mongolians, but are significantly different from Chinese. Professor Kim Wook of the Department of Biology at Dankook University conducted a study on "mitochondrial DNA mutation and the origin and group formation of Koreans" on 185 Koreans who are not related by blood, and Koreans are from South East Asia.It was announced on the 11th that genes of the northern people were found to be mixed. In particular, Professor Kim added that Koreans showed genetic characteristics closer to Chinese Han Chinese and Japanese than Mongolians, who have been known as similar ethnicities. In this study, Professor Kim analyzed the sequence of 3,000 base pairs mainly used in anthropological classification among 16,000 base pairs that make up mitochondrial DNA of each subject and compared the frequency and type of "Haplogroup" with Chinese, Mongolian, Japanese, and Southeast Asians. As a result, Professor Kim explained that the genotypes of most Koreans surveyed were mixed with 8 to 9 lines from the south and the north, of which about 4 out of 10 were most similar to those of the agricultural race in central and northern China. Professor Kim argued that the genetic proximity of Koreans and Japanese, in particular, can be seen as genetic evidence indicating that the Yayoi people who settled on the Japanese archipelago more than 2,300 years ago migrated from the Korean Peninsula. Professor Kim explained that this result is in line with a team led by Takao Inoue, a professor of medicine at Tottori University in Japan, in 2003 that Japanese mitochondria matched Koreans in the 5th to 4th centuries B.C. This is contrary to the presentation by Professor Kim Jong-il of Hallym University University earlier this year. Professor Kim Jong-il analyzed the mitochondrial DNA of 66 Koreans and 72 Mongolians and compared it with 86 other ethnic DNA around the world, and announced that Koreans are highly related to Mongolians, while they are different from Chinese. Professor Kim Jong-il said, "There are some claims that the method of comparing the haflog group is not statistically significant," adding, "First of all, it is better to analyze the entire sequence and then find and compare a more accurate haflog group." In response, Professor Kim Wook said, "This study is based on an internationally recognized method of anthropological classification, which is more reliable than the entire sequence analysis that has not yet been established. We need to reconsider our perception so far."