Originally posted by: Kovash
In the AonE/ANBU version of the 'Haku Episodes' (can't remember exact numbers) Kakashi and Haku both spend time explaining bloodline limits, and Haku mentions that (for his clan atleast, I'm not sure if it is true for everyone) that it was the Females that passed it on to their children.

I'm not sure if it was a bogus translation or not, but I have the episode and he quite clearly says it.... So... yeah...
I believe his mother was the one who passed it on to him. This means his father was normal and without an advanced bloodline.