Genetic history

Understanding G25 Coordinates in DNA Ancestry Analysis

G25 coordinates provide a compact, multidimensional view of how your DNA sits relative to reference populations in genetic space. Learn how they work, how to interpret distances, and why they are exploratory tools—not definitive ancestry labels.

Understanding ADMIXTURE Analysis: What It Shows and Limits

ADMIXTURE analysis models genome-wide SNP data as mixtures of inferred components to reveal population structure. Learn how it works, how to interpret results, and why it is not a direct ancestry report.

G25 Studio: Beginner Manual

This guide is for people who are new to G25 coordinates and G25 Studio. It explains the ideas in plain language, walks through a simple first analysis, and points you to deeper documentation when you are ready.

Discover Your Celtic Ancestry: Unveil Your Ancient Heritage

Understanding Imputed vs. Non-Imputed Results

Local Ancestry Inference

Why do siblings often have differing DNA ancestry results?

What are the different types of ancestry and admixture analysis?

Common questions about DNA testing

What is ancestry?

What is MTDNA Testing and How Does it Work?

mtDNA testing examines maternal-line DNA to help trace ancestry, identify haplogroups, and compare genetic similarity with reference populations for genealogy research.

What is YDNA testing