Siblings with exactly the same parents can have different Ancestry DNA results. It is not compulsory that identical ancestors will give identical ethnicity estimations. In fact, it is common that siblings have different ethnicity results. There are several factors which cause different Ancestry DNA results such as:
Basic Human Genetics
In the case of Ancestry DNA testing, human genetics play a very important role. First, chromosomes that are part of basic human genetics affect ethnicities because most genealogical DNA testing is autosomal testing. These autosomes are the first 22 pairs of chromosomes. Moreover, genes also help in determining the ethnic heritage.
Our reproductive cells take pieces of stuff from each of the chromosomes to make up new and unique configurations. This new DNA strand is similar to the old one but not identical. This is the main reason that siblings unless they are twins, there are always some differences in genetic code. This leads to differences in their ethnicities.
Ancestry DNA test California can help you in estimations of your genetic ethnicity. Above are the main reasons that siblings also want to go for Ancestry DNA results to know whether they have exact same ethnicities or not. Face DNA Test professionals can help you in affordable Ancestry estimations.