What is Genetic Distance?

Genetic distance is a key measurement value when comparing the Y-DNA STR markers between Y-DNA profiles. It refers to the total difference in allele values of different genetic markers between two people.

The smaller the value of genetic distance for a given set of Y-DNA STR markers, the closer the two individuals are related, and the more recently they shared a common ancestor.

Trace Your Paternal Line

Over 100 free ancestry web apps including Marie Antoinette, the Romanov Family, etc. Login to access your maternal ancestry test results. 

Free ancestry web apps are available to users who have taken the Y-DNA Test.

Get Test

Already took the test? Get started for FREE!

Log In