Dodecad K12a

Dodecad K12a — Modern global admixture calculator

This calculator decomposes an individual's autosomal DNA into 12 modeled ancestral components calibrated against modern and ancient reference populations. It is designed for anyone worldwide — hobbyist genealogists, students of population genetics, and professional researchers — who wants a digestible, comparative view of genetic ancestry across broad Eurasian and African axes.

What it analyzes:

• Proportional ancestry signals assigned to 12 components: Mediterranean, Far Asian, Siberian, North European, South Asian, West African, Caucasus, Gedrosia, East African, Southwest Asian, Southeast Asian, Northwest African.
• Patterns that reflect deep population structure, recent admixture, and shared drift with those reference clusters.

Insights you can gain:

• A high-level portrait of how much your genome aligns with major Eurasian and African population clusters.
• Clues about historical migrations and contacts (e.g., Mediterranean and Caucasus links, steppe- or Siberian-related ancestries, African and South Asian connections).
• Comparative context: how your profile differs from or resembles regional averages.

Historical and genetic context:

• These components summarize millennia of migrations — Neolithic farmers, Bronze Age steppe movements, Saharan and Bantu dispersals, Indian Ocean trade, and East/ Southeast Asian expansions — compressed into modern reference signals like Gedrosia (Iranian plateau/South Asian-related) or Northwest African (Maghrebi influence).

Why it’s valuable:

• Offers a clear, reproducible snapshot useful for exploratory research and personal discovery.
• Complements genealogical records by revealing broad ancestral affinities that documents cannot show.

Limitations:

• Components are model-based approximations, not precise ethnic labels; results depend on reference choices and algorithmic assumptions.

Use Dodecad K12a as a robust, interpretable guide to your global genetic h