Same Siblings: Different Ancestry

National Geographic’s, Nicole Wetsman, explains how siblings can have completely different

DNA ancestry. A phenomenon known as “genetic recombination” is responsible for the shuffling

of genes, and because of this, “siblings only share about the 50 percent of the same DNA.” In

terms of ancestry, a diverse background with a variety of ethnicities allows for more profound

effects of genetic recombination, therefore causing the ancestry and lineage of two biological

siblings to be completely different. In the past couple of years, technology has allowed people to

send in their DNA samples in order to be tested for ancestry and ethnic origins. There are

limitations, however, which include the fact that many of the comparison points have been

collected from the Americas and European countries, so people in other parts of the world may

match at a lower confidence level to their respective ancestry and genetic codes. [147 words, 1 

quote, 1 link, 1 image]