Tolan K13 M2

Tolan K13 M2 is a modern, world‑scale admixture calculator that quantifies the proportional ancestry of a genotype against 13 curated reference clusters. The model maps input SNP data to clusters A–M (A West Europe, B East Europe, C South Mediterranean, D Caucasus, E Arabia, F Siberia, G Central Asia, H India, I South‑East Asia, J West Africa, K East Africa, L Oceania, M East Asia) to produce an intuitive, reproducible breakdown of major ancestral components. It emphasizes continental and subcontinental affinities, providing a broad lens on population history rather than ultra‑fine local resolution. Designed for a wide audience—genetic genealogy enthusiasts, educators, students of human history, clinical researchers exploring population structure, and curious individuals—the calculator is particularly useful when you want a compact, interpretable overview of ancestral makeup. It accepts modern SNP genotype data and produces percentage allocations that reveal which regional source pools best explain an individual’s genetic composition. Users gain clear insights into major ancestry signals (for example, West versus East European affinity, Mediterranean vs Arabian contributions, or Siberian and Central Asian inputs), and can observe mixtures that reflect large‑scale events such as out‑of‑Africa dispersals, Holocene farmer and pastoralist expansions, the spread of Eurasian steppe ancestry, Indian subcontinental diversity, African migrations, and Austronesian/Oceanic interactions. The output supports side‑by‑side comparisons between samples and reference centroids to visualize affinities. Tolan K13 M2 also explains limitations: it is built from modern reference populations and characterizes ancestry in terms of modeled clusters rather than named historical ethnicities. Small percentage traces should be interpreted cautiously, and results are best used as a starting point for further analyses (local ancestry, haplotype-based methods, or archaeological and linguistic da