Do Siblings Have the Same Ethnicity?

Many people believe that siblings' ethnicities are identical because they share parents, but full siblings share only about half of their DNA with one another. Because of this, siblings' ethnicities can vary. ... This pattern would continue with each sibling born.

Can siblings have different ethnicity?

Absolutely. In fact, unless you are identical twins, it would be unusual if you didn't. You and your siblings do not share the exact same DNA. Genealogical DNA testing determines ethnicity based on your unique DNA.

Can a child have more ethnicity than a parent?

It's possible through recombinations to get a bit more than each parents. For example if each parent has 5% of say, Scandinavian, you could get 6 or 7% by inheriting different DNA segments of Scandinavian ancestry. But your total can never exceed your parents' total.