Admixture Calculator

Dodecad Weac 2

**Dodecad Weac 2** is a seven‑component autosomal admixture calculator for modern global samples. It estimates ancestry proportions against seven reference clusters (Palaeoafrican, Atlantic_Baltic, Northeast_Asian, Near_East, Sub_Saharan, South_Asian, Southeast_Asian), offering a clear, research‑oriented snapshot of deep and recent admixture useful for genealogists, researchers, and curious users. Results are probabilistic estimates and best interpreted alongside historical context.

7 Components

World Target Region

Dodecad Author

Modern Era

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Chapter I

Calculator Details

Comprehensive information about this admixture calculator

Author Dodecad

Era Modern

Components 7 Populations

Target Region World

Created November 2022

Dodecad

Calculator Creator

About This Calculator

**Dodecad Weac 2 — Global seven‑way admixture calculator** **What this calculator analyzes** Dodecad Weac 2 performs model‑based autosomal ancestry deconvolution to estimate the proportion of a person’s genome that best matches seven broad reference components. Using genome‑wide SNP data, it returns percent ancestry from the following reference populations: - **Palaeoafrican** - **Atlantic_Baltic** - **Northeast_Asian** - **Near_East** - **Sub_Saharan** - **South_Asian** - **Southeast_Asian** **Who it's designed for** This tool is built for a global audience: genealogists, population geneticists, curious consumers of ancestry reports, and anyone seeking a concise, research‑grade snapshot of deep and recent admixture patterns across the world. It is tuned for modern-era samples and is most informative when applied to high‑quality autosomal SNP data. **Insights you can gain** - Quantified ancestry proportions across seven continental/regional clusters - A clear view of major admixture signals (e.g., European vs. East Asian vs. African components) - Context for migration, contact zones, and multiethnic ancestry in individuals or small cohorts **Historical and genetic context** These seven components capture major branches of human population structure shaped by ancient splits and more recent migrations: Out‑of‑Africa dispersals, Eurasian expansions, South and Southeast Asian differentiation, and later regional admixture. The labels are broad and reflect reference clusters rather than precise ethnicities. **Why this calculator is valuable** Dodecad Weac 2 provides an accessible, scientifically grounded summary of ancestry that complements genealogical records and deeper population studies. It is fast, interpretable, and useful for comparative analyses across samples. Users should interpret results as probabilistic estimates—sensitive to reference composition and SNP overlap—rather than exact cultural or national labels. For robust interpretation, combine thes

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Chapter II

Reference Populations

The populations used as genetic references in this calculator

7 Reference Populations

Palaeoafrican

Populations: Indigenous groups with ancient African ancestry, predating major Bantu migrations.

Atlantic_Baltic

Populations: Northern European groups, including those around the Atlantic and Baltic regions, characterized by ancient and modern European ancestry.

Northeast_Asian

Populations: Ethnic groups from northeastern Asia, including Siberian and surrounding areas, often with ties to ancient Siberian and Mongolian lineages.

Near_East

Populations: Middle Eastern ethnic groups, encompassing ancient civilizations like Mesopotamia and Levant, influential in early agriculture and trade.

Sub_Saharan

Populations: Diverse ethnic groups located below the Sahara Desert, with deep historical, cultural, and genetic diversity in African ancestry.

South_Asian

Populations: Ethnic groups in the Indian subcontinent, known for rich cultural and linguistic diversity, influenced by historical migrations and empires.

Southeast_Asian

Populations: Ethnic communities from the Southeast Asian region, including insular and mainland nations, characterized by Austronesian and other indigenous ancestries.

Chapter III

Understanding Admixture Analysis

Learn how admixture calculators work and how to interpret your results

What is Admixture Analysis?

Admixture analysis is a method used to estimate your genetic ancestry by comparing your DNA to reference populations from around the world. Think of it as creating a recipe of your genetic makeup, where the ingredients are different ancestral populations.

This calculator uses 7 carefully selected modern populations as references, allowing for a detailed breakdown of your genetic heritage.

How It Works

Your DNA is compared to 7 reference populations
Modern populations are used as genetic references
Results show your genetic similarity to these populations
More accurate with a diverse reference panel

Understanding Your Results

Your results will show percentages of genetic similarity to these reference populations. Remember these important points:

Results reflect genetic similarity, not direct ancestry
Modern populations are used as references
Percentages indicate relative genetic contribution
Results are estimates based on available reference data