Board Thread:General Discussion/@comment-11388043-20130711070950/@comment-6881629-20130711091459

Being a true Dragonborn is not past on to children and they are not born at random its a gift given by Akatosh. Maybe a small amount of this can be past down in the blood (explaining why the Amulet of Kings can only be worn Alessia's blood relatives) but a true Dragonborn like Tiber Septim and our Skyrim character has the blood and soul of a Dragon you can't pass a soul on to your children.

This is one of those topics though people adamantly stick to what they believe.