How many generations does DNA go back?

Related questions

1. How accurate is a DNA swab test?
2. How far back does DNA ancestry go?
3. What's the difference between my heritage DNA and ancestry DNA?
4. What does 23andMe ancestry tell you?
5. Can a woman trace her paternal DNA?
6. How long does DNA last on a swab?
7. What does ancestry do with DNA samples?
8. Is 23andMe owned by ancestry?
9. Is 23 and me better than ancestry?
10. What is MyHeritage?

Tags

1. #sequence
2. #maternal
3. #genomic
4. #years
5. #times
6. #within
7. #ancestor
8. #brings
9. #mitochondrial
10. #recent
11. #about
12. #generations
13. #sharing
14. #matching
15. #means
16. #common
17. #chance
18. #matches