Admixture Calculator

Global Ancestry K27

**Global Ancestry K27 — Modern, high-resolution admixture analysis** Compare your autosomal DNA to 21 curated regional references to receive clear percentages of continental and subcontinental ancestry. Ideal for genealogy enthusiasts, adoptees, and researchers, K27 highlights modern-era migration signals (e.g., Mediterranean, Eurasian, African, Oceanian) while noting statistical uncertainty and reference limits.

27 Components

World Target Region

DNA Genics Author

Modern Era

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Chapter I

Calculator Details

Comprehensive information about this admixture calculator

Author DNA Genics

Era Modern

Components 27 Populations

Target Region World

Created January 2023

DNA Genics

Calculator Creator

About This Calculator

**Global Ancestry K27 — Modern, continental-to-subcontinental admixture analysis** Global Ancestry K27 evaluates your autosomal DNA against a curated set of 21 regional reference populations to produce a clear, quantitative portrait of genetic ancestry. Designed for people with genotype data from consumer labs (e.g., 23andMe, AncestryDNA, MyHeritage) as well as genealogists, adoptees, educators, and population geneticists, this calculator emphasizes modern-era, high-resolution continental and subcontinental signals. What it analyzes: - Genome-wide autosomal markers compared to reference groups including East Asian, West African, North African, Anatolia/Caucasus/Iranian Plateau, Sardinian, Ashkenazi Jewish, Scandinavia, Oceania, the Americas, and more. - Relative ancestry proportions that reflect both recent admixture and deeper regional affinities. Insights you can gain: - Estimated percentage contributions from major world regions and specific subregions (e.g., North Italy vs. Iberian; Central Indian vs. Southern Indian). - Signals that illuminate recent family history (multi-generational mixing) and broader migration patterns (e.g., Eurasian steppe, Mediterranean exchanges, trans-Atlantic movement). - Identification of distinctive components such as Sardinian-like isolation, Ashkenazi Jewish genetic clusters, or Oceania-specific ancestry. Historical and genetic context: K27 is framed for the modern era: it highlights population structure shaped by documented historical migrations, trade routes, and demographic events rather than deep Paleolithic splits alone. Reference populations reflect both geographically and culturally informative groups (e.g., Anatolia/Caucasus/Iranian Plateau to capture Near Eastern inputs; North British Isles and Scandinavia for northern European substructure). Why this calculator is valuable: - Offers balanced, interpretable subcontinental resolution useful for personal genealogy and research. - Presents results with clear caveats abo

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Chapter II

Reference Populations

The populations used as genetic references in this calculator

27 Reference Populations

Africa:

Africa East
Populations from regions like Ethiopia, Kenya, and Tanzania, known for diverse ethnic groups.
Central African
Groups inhabiting countries like the Democratic Republic of Congo and Cameroon, rich in cultural diversity.
North African
Populations from Morocco, Egypt, and Tunisia, influenced by Arab and Berber ancestry.
West African
Ethnicities from Nigeria, Ghana, and Senegal, known for a rich history and cultural heritage.

Americas:

Americas
Diverse populations including Indigenous peoples, European descendants, and African diasporas.

Asia:

Anatolia Caucasus Iranian Plateau
Encompasses populations from modern-day Turkey, Caucasus region, and Iran, known for historical empires.
Central Asia
Groups from countries like Kazakhstan and Uzbekistan, with a strong nomadic heritage.
Central Indian Subcontinent
Populations from central regions of India, diverse in language and culture.
East Asia
Includes populations from China, Japan, and Korea, characterized by distinct cultural traditions.
East European
Slavic and other groups from countries like Russia and Ukraine, influenced by both European and Asian cultures.
Southern Indian Subcontinent
Populations from South India and Sri Lanka, known for Dravidian languages and cultures.

Europe:

Ashkenazi Jewish
Jewish communities that historically settled in Central and Eastern Europe, with a unique cultural heritage.
Balkan
Diverse populations from the Balkan Peninsula, known for complex ethnic and religious histories.
Finland
Finnish populations, known for their Uralic language and distinct cultural identity.
Iberian
Populations from Spain and Portugal, influenced by a blend of European and Mediterranean cultures.
North British Isles
Inhabitants of the UK and Ireland, with Celtic and Anglo-Saxon ancestry.
North Italy
Populations from Northern Italy, with Roman and other European influences.
North and Central European
Includes various Germanic and other groups from central Europe with diverse cultural influences.
Sardinian
Indigenous population of Sardinia, known for unique genetic characteristics.
Scandinavia
Populations from Sweden, Norway, and Denmark, with a Viking heritage and a strong cultural identity.

Oceania:

Oceania
Indigenous and migrant populations from Australia, New Zealand, and Pacific islands, with rich and varied cultures.

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 27 carefully selected modern populations as references, allowing for a detailed breakdown of your genetic heritage.

How It Works

Your DNA is compared to 27 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