After following the growing enthusiasm for DNA Genealogy Research for a year now, I decided to take the plunge. Because I wanted to follow my father's McGinnis lineage, I needed a male McGinnis relative for a Y-DNA test.
Males inherit a Y-chromosome from a father, who in turn received his Y chromosome from his father and so on. Males also inherit an X chromosone, but females only inherit the X chromosone and thus can only test their maternal DNA, called mtDNA. This follows their mother, her mother, her mother and so on back through her maternal ancestors.
My brother was pursuaded to swab his cheeks for a DNA sample, and I ordered my 33 marker Paternal Lineage DNA test kit.
More about the test results to come!