A step-by-step look at how I helped a second cousin find her paternal biological family.

So, let's get down to it. How does this DNA matching work? First, a centiMorgan is a unit of measurement used to determine the distance from scientifically indentified positions, or markers, on each of our 23 chromosomes. It is not a physical measurement, but a tool to show closely we are related to the matches we receive in our DNA test results. It is used by all the testing companies. DNA Inheritance Patterns Each of us receives exactly 50 percent of our DNA from each par