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...
Paternal DNA
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...