Admixture Calculator

LM Genetics Global K4

**LM Genetics Global K4** is a four-component admixture calculator that estimates global ancestry proportions against four reference clusters: **Europeid**, **Mongoloid**, **Amerindian_ANE**, and **Negroid**. Ideal for genealogy, education, and quick research baselines, it provides fast, interpretable K=4 breakdowns while highlighting limitations of simplified models and reference bias.

4 Components

World Target Region

LM Genetics Author

Modern Era

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Chapter I

Calculator Details

Comprehensive information about this admixture calculator

Author LM Genetics

Era Modern

Components 4 Populations

Target Region World

Created November 2022

LM Genetics

Calculator Creator

About This Calculator

**LM Genetics Global K4 — Overview** LM Genetics Global K4 is a four-way admixture calculator designed to estimate the proportional ancestry of contemporary individuals against four broad reference clusters: **Europeid**, **Mongoloid**, **Amerindian_ANE** (Amerindian with Ancient North Eurasian affinity), and **Negroid**. It compares a sample genotype to curated reference allele-frequency profiles and produces a compact, interpretable breakdown of global ancestry in a K=4 model. **What this calculator analyzes** - Genome-wide allele frequency similarity to four continental/historical reference clusters - Estimated percentage contributions of each reference component to an individual’s genome - Relative affinities that help place a genome on a simplified global ancestry axis **Who it’s designed for** - Genealogy enthusiasts seeking a high-level global ancestry snapshot - Students and educators exploring population genetics concepts - Researchers who need a quick, reproducible K=4 baseline for comparative analyses - Anyone curious about broad continental components in a modern, global context **What insights you can gain** - Approximate continental-scale ancestry proportions - Signals of mixed heritage or predominant regional affinity - A starting point for deeper analyses (higher-resolution tests, local ancestry, haplogroups) **Historical and genetic context** The four reference clusters reflect long-term population structure and migration patterns (e.g., Eurasian expansions, peopling of the Americas, African diversity). Labels are used here as operational categories for modeling; they summarize complex histories rather than define social identity. **Why this calculator is valuable** - Fast, transparent K=4 results that are easy to interpret and compare - Useful as an educational and exploratory tool before committing to more complex models **Limitations & guidance** - Simplified model: real ancestry is continuous and often requires finer-scale references - Re

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Chapter II

Reference Populations

The populations used as genetic references in this calculator

4 Reference Populations

Europeid
- Description: This group includes populations originating from Europe and parts of the Middle East and Central Asia. It encompasses a wide variety of ethnic groups, commonly characterized by lighter skin tones.
Mongoloid
- Description: Populations native to East Asia, Central Asia, and the Arctic region. They are generally associated with distinctive traits such as epicanthic folds and straight black hair.
Amerindian_ANE
- Description: Refers to the indigenous peoples of the Americas and Ancient North Eurasian populations, known for their diverse cultures and historical migration patterns across the Bering land bridge.
Negroid
- Description: Encompasses the diverse ethnic groups primarily from Sub-Saharan Africa, characterized by darker skin tones and significant genetic diversity within the continent.

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

How It Works

Your DNA is compared to 4 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