mtDNA is ONLY passed mother to daughter.
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
What you don’t know can’t hurt you — — — right?
Mitochondrial DNA is passed from mother to child. Both boys and girls inherit mtDNA from their mother only.
In this case, the mtDNA serves as an indicator of ancestry. Prince William's children will also carry a tiny fraction of this particular ancestor's nuclear DNA as well.