what type of dna testing does my ancestry use
Three types of genetic ancestry testing are commonly used for genealogy: 1  Y chromosome testing: Variations in the Y chromosome, passed exclusively from father to son, can be used to explore ancestry in the direct male line. Y chromosome testing can only be done on males, because females do not have a Y chromosome.
Women who wish to determine their direct paternal DNA ancestry can ask their father, brother, paternal uncle, paternal grandfather, or a paternal uncle's son (their cousin) to take a test for them. There are two types of DNA testing: STRs and SNPs.