DNA test kits work by analyzing a small sample of your own DNA. You simply collect a saliva sample using the cheek swab included in the test kit. The swab is then mailed back to the DNA testing company's laboratory for analysis. In the lab, technicians will extract the DNA from your cells and analyze specific locations on your genome called SNPs (single nucleotide polymorphisms). https://www.newsanalyticspro.com/ancestry-by-people-globally/