Mitochondrial DNA is passed from a mother to her children. The biologists at the lab use an algorithm to translate what seems like a jumble of letters into something with meaning.Įxactly what kind of information is available depends on the type of test you take. You purchase the kit, follow the directions closely, and send your DNA sample to a lab for analysis.Īt the lab, your saliva sample is digitized and transformed into a long string of letters that are incomprehensible to most people. When your genetic information is analyzed and entered into a database, it can also tell you a story about your family history that you never knew.Ĭompanies like 23andMe,, and a handful of others offer testing kits that make it easy to learn about your family history. That tiny percentage is responsible for your hair and eye color, the shape of your nose, the size of your foot, and your risk of developing certain diseases. You share 99.5% of all genetic material with every other human on earth. Half of your DNA (deoxyribonucleic acid) comes from your mother, and half comes from your father. DNA testing can connect you with long-lost relatives, confirm which part of the world your ancestors came from, and more. Today, a simple free ancestry search can unlock all kinds of family secrets.Īt-home DNA testing kits still provide important medical information, but learning more about the family tree has become a popular draw. Searching your family tree with the help of DNA results is as easy as spitting into a tube. It may be hard to believe that the cutting-edge DNA science that changed the justice and healthcare systems is now a popular birthday gift for your genealogy-minded friends and family, but it’s true.
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