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A test for both biological males and females, mtDNA is used to help answer questions about relatedness on the direct maternal line.
mtDNA is passed down from biological females
While both males and females inherit mtDNA, only biological females can continue to pass on mtDNA. mtDNA testing can help you discover and verify your direct maternal ancestry by connecting you with other individuals who are descendants of a shared common matrilineal ancestor.
CONNECT WITH mtDNA RELATIVES
Join the world’s largest database of mtDNA testers
Your mtDNA matches will share a common ancestor with you on your direct maternal line. That common ancestor can be recent -meaning within a generation or two - or more distant - living up to or around 1,300 years ago. The tools and data gained through a mtDNA test can help you learn more about your matrilineal family history.
Connect with matches to discover your shared matrilineal ancestry.
View and explore your mtDNA matches’ Family Trees.
Discover new matrilineal ancestors.
DISCOVER YOUR mtDNA HAPLOGROUP
Follow the path of your direct matrilineal ancestors
Use mtDNA to determine where your direct maternal line’s ancestors came from, their locations in historic times, and how they migrated throughout the world.
Discover your matrilineal ancestors’ ancient migration path out of, or across, Africa.
Find your placement on the world’s largest mtDNA Haplotree.
GET YOUR PERSONALIZED mtFULL SEQUENCE VIDEO
It tells the story of your maternal ancestry and is a fun way to share your results with friends and family.
FREQUENTLY ASKED QUESTIONS
Have questions? We have answers.
mtDNA refers to mitochondrial DNA which is passed from mother to child. While men receive mitochondrial DNA from their mother, they do not pass it on to their children. Testing mtDNA allows for investigation into your maternal line and can help identify living relatives whose mtDNA is similar to yours, as well as ancient migration routes your maternal ancestors may have taken.
Every individual who takes one of our mtDNA tests will also receive their mtDNA haplogroup. When humans left Africa tens of thousands of years ago, they departed in small groups that migrated into different parts of the world. Over many generations, each group developed distinct mutations allowing us to identify one from the other. We call these groups of mutations haplogroups, and they can tell us which migratory routes our maternal ancestors traveled.
mtDNA testing will not be able to identify specific countries that your maternal ancestors came from. mtDNA mutates slowly which allows you to find out ancient information (such as your haplogroup), and will not help you learn about your more recent (within the past 200-500 years) origins. However, you can use mtDNA results with your personal genealogy research to contact your matches to find out more about where your common ancestors may be from.
The mtDNA journey video is a feature that is included when you get an mtFull Sequence test. It tells the story of your maternal ancestry and is a fun way to share your results with friends and family.
If you have questions about any of your results, you can either contact one of our Customer Support Representatives or look through our mtDNA pages in our Help Center to learn all about mtDNA testing!
Your closest matches are your exact matches at the Full Sequence level. To determine which of those matches share a common ancestor with you more recently than the others, we offer several tools to help you compare your common genealogical and geographical connections, such as matrilineal Earliest Known Ancestors and locations and shared Family Trees. You can add your own genealogical information to your account (Surnames and Earliest Know Ancestor), increasing the chance that a match may recognize their connection to you and reach out.
Your mtDNA results will provide you with a migration map that shows you the path your ancient matrilineal ancestors took out of or across Africa tens of thousands of years ago. You can also learn more about your recent matrilienal ancestry from connecting with your matches and utilizing tools that come with the results to learn more about where your matches’ maternal Earliest Known Ancestors are from. Because you will share a common ancestor with your matches, you will also share a common geographic location with them. The tools included with the results and connections you make with your matches can help you determine where that location might be and who that common ancestor was.
The Mutations page breaks down your raw sequence for your mtDNA test results. Your mutations determine your matrilineal genetic signature, meaning both the ancient migration path that your direct maternal ancestors took and who your closest matrilineal matches are. >
We compare your DNA to two reference sequences, the Reconstructed Sapiens Reference Sequence (RSRS) and the Revised Cambridge Reference Sequence (rCRS).
For the RSRS, each mutation will be grouped by region of the mitochondria, and then listed with the nucleotide base (A, T, G, C) read in the DNA of the reference found at the position, followed by the position, and then the nucleotide base (A, T, G, C) read in your DNA. For example, C16222T means that at position 16222, the reference sequence has a C and your DNA has a T.
For the rCRS, you will see another section that lists all of your mutations in a chart, broken down by each region of the mitochondria. The column headers in the rCRS mutations chart provide the following information:
Position: The location of the mutation
CRS: The nucleotide base (A, T, G, C) read in the DNA of the Cambridge Reference Sequence
Your Result: The nucleotide base (A, T, G, C) read in your DNA at this position. Blank means your DNA matches the Cambridge Reference Sequence.
Some mutations will be defined by a letter other than A, T, G, or C. These are mutations in progress, and they are referred to as heteroplasmies. Learn more