The first DNA testing method was invented in 1984 by Sir Alec Jeffreys, a British geneticist. Jeffreys used X-ray film to analyze differences between the DNA of several individuals. Jeffreys also developed the first DNA ... More » says that DNA tests take up to two business days, starting from the day the lab first receives the samples. The testing process for both legal and personal interests is the same. More »

Indentigene is a brand of DNA tests that work by amplifying or copying the DNA, according to the company website. Identigene sells DNA tests for the purpose of establishing paternity. More » Health Diagnostics & Imaging

Family DNA testing requires swabbing the inside of the cheek, containing the sample in a test tube and mailing it to Family DNA for DNA testing. Testing kits can be ordered from the Family Tree DNA website, as well as at... More »

Ancestry DNA takes a small sample of saliva and uses autosomal testing to find both paternal and maternal ancestors. Most genetic testing focuses on the Y-chromosomes, which are male genetic markers, or on the mitochondr... More » Science Biology Molecular Biology & DNA

According to the American Indian and Alaska Native Genetics Research Center of the National Congress of American Indians, DNA testing reveals the genetic similarities between people. This allows a DNA test to be used to ... More » Science Biology Molecular Biology & DNA

DNA testing cannot prove that people are Native American. There are no unique genes for tribes or Native Americans as a whole. There are some genetic markers that are found mostly only in Native Americans and Alaska Nati... More » Science Biology Molecular Biology & DNA