Men have one X chromosome and one Y chromosome (the Y making
them male). While women have two X chromosomes and no Y.
It
is the Y that is passed from father to son, to son, to son,
etc...
The Paternal DNA (Y Chromosome DNA) is passed from father to son, to son, to son, etc. By looking at your Y chromosome we can evaluate where your great paternal ancestors originated from and where they are distributed in the world today. More...
Men have one X chromosome and one Y chromosome (the Y making them male). While women have two X chromosomes and no Y.
It is the Y that is passed from father to son, to son, to son, etc...
Maternal DNA (Mitochondrial DNA) is passed only from your mother. So, by looking at the type of Mitochondrial DNA you have, we can see what your mother received from her mother. More...