Can a DNA test be wrong if the mother is not tested?

Related questions

1. How accurate is DNA matching?
2. Does ancestry do Y DNA testing?
3. Can DNA test wrong?
4. Can you cheat a DNA test?
5. Are at home DNA tests accurate?
6. Can you brush your teeth before a DNA test?
7. Do babies come out like the father?
8. Can DNA skip a generation?
9. Can a blood test determine race?
10. How many years is 7 generations?

Tags

1. #locations
2. #father
3. #biological
4. #child
5. #never
6. #tested
7. #wrong
8. #match
9. #given
10. #three
11. #result