DNA is a legacy passed down from our ancestors, a record that contains clues and evidence about their lives and relationships. Taking a DNA test unlocks that legacy and provides powerful evidence to support or refute our existing research.
How does DNA help with genealogy?
With genealogical DNA testing you can discover the origins of your paternal line by analysing genetic markers (these are genes that code for specific characteristics). Some tests can also show what the migration routes of your paternal ancestors were up to recent years.
What can DNA tell you about your Ancestry?
What do my results tell me? Your AncestryDNA® results include information about your genetic ethnicity estimates and, if you’ve chosen to see your matches and be listed as a match, identifies potential DNA matches, linking you to others who have taken the AncestryDNA® test.
What does Ancestry do with your DNA after testing?
Your DNA sample is securely stored — After testing is complete, any remaining DNA from your test is archived and stored in a temperature-controlled, secure facility with 24-hour monitoring and limited access.
How accurate is DNA testing for Ancestry?
Accuracy is very high when it comes to reading each of the hundreds of thousands of positions (or markers) in your DNA. With current technology, AncestryDNA has, on average, an accuracy rate of over 99 percent for each marker tested.
Can siblings have different DNA?
Because of recombination, siblings only share about 50 percent of the same DNA, on average, Dennis says. So while biological siblings have the same family tree, their genetic code might be different in at least one of the areas looked at in a given test. That’s true even for fraternal twins.