DNA Testing and Genealogy: What Your Results Really Tell You
DNA & Genealogy DNA Testing and Genealogy: What Your Results Really Tell You Millions of people have spit into a tube and waited anxiously for their DNA results to arrive. But once they do, many people aren't sure what to do next. Here's what your DNA test actually reveals and how to use it as a powerful genealogy tool. The Three Main Types of DNA Tests Not all DNA tests are created equal. The type you choose determines what questions it can answer about your ancestry. Autosomal AncestryDNA / 23andMe Tests DNA from both sides of your family. Best for finding cousins and close relatives. Useful back roughly 5–7 generations. Y-DNA Paternal Line Passed father to son only. Traces your direct paternal line deep into history. Essential for surname research. mtDNA Maternal Line Passed from mother to all children. Traces your direct maternal line. Very stable across centuries. Ethnicity Estimates: Exciting, But Not Evidence The colourful ethnicity pie chart is usually the first thi...