East Sea K12

East Sea K12 is a modern-era genetic admixture calculator that estimates ancestral components using twelve reference populations chosen to emphasize East and Central Eurasian diversity while remaining globally relevant. It analyzes autosomal genotype data to produce proportional ancestry estimates against reference groups: Dai, Han-Chinese, Korean, Japanese, Mongolian-Tungusic, Yakuts, Tibetan, Cambodian, Indian, Amerindian, European, and African. Designed for researchers, genealogy enthusiasts, and curious individuals worldwide, East Sea K12 offers fine-grained resolution of East Asian and adjacent ancestries within a broad, comparative global framework. Users gain clear, interpretable insights: the relative contribution of each reference population to an individual’s genome; patterns consistent with historical migrations (for example, north–south and east–west population movements across Eurasia); signals of recent admixture versus deeper shared ancestry; and how an individual’s profile compares to regional reference centroids. By focusing on populations with distinct linguistic, geographical, and historical backgrounds, the calculator helps illuminate threads such as Sino-Tibetan, Altaic/Tungusic, Austroasiatic, South Asian, and steppe-associated influences, while situating those alongside European, African, and Amerindian components. East Sea K12 is valuable because it balances regional specificity and global perspective: it is tuned to detect subtle East Asian substructure that broader calculators can miss, yet it remains interpretable for non-specialists through proportional outputs and contextual notes. Results are probabilistic and best interpreted as estimates informed by the chosen references and modern population structure. Use East Sea K12 as a starting point for exploration, to generate hypotheses about ancestral origins, or to complement historical and genealogical records with genetic evidence.