How does DNA show ethnicity?

Related questions

1. Do Babies always have the father's blood type?
2. Is 23 and me better than ancestry?
3. Which DNA test is better ancestry or 23andMe?
4. Can a DNA test be done with just the father and child?
5. What samples can be used for DNA testing?
6. How accurate is DNA testing for ancestry?
7. How much does my heritage com cost?
8. What does a DNA test tell you?
9. Does being sick affect DNA test?
10. How long does DNA last on a swab?

Tags

1. #mother
2. #genetic
3. #social
4. #analysis
5. #reveal
6. #exactly
7. #identified
8. #ethnicity
9. #these
10. #small
11. #people
12. #involve
13. #group
14. #tests
15. #ancestors
16. #snippets
17. #father
18. #lived
19. #ancestry
20. #assume
21. #where
22. #passed
23. #through