The Y chromosome passes almost unchanged from father to son. Male ancestors carried their Y-DNA line along their migrations, allowing you to trace your paternal ancestry by using our advanced Y-DNA tests and the world’s largest Y-DNA database.
Special sections on the Y chromosome determine a male’s Y haplogroup, revealing the origins of his ancestors as evidenced by common DNA markers.
A Y-DNA test looks at male inherited Y-Chromosome DNA. As the Y-Chromosome is passed on from a father to his sons, it is only found in males. Y-DNA testing can then be used to trace clearly a direct paternal line.