A genealogical DNA test is a test that is done to trace the ancestry of an individual. It is a test that analyzes DNA samples from a person to determine familial relationships, genetic traits, and ethnic origins. There are several synonyms for this test, such as genetic genealogy test, ancestry DNA test, family tree DNA test, and heritage DNA test. All of these synonyms are used interchangeably, depending on the context and the purpose of the test. No matter what name is used, all of these tests provide a fascinating insight into one's ancestry, helping people to learn about their family history and discover their lineage.