I just noticed that in Heroes, one character's powers are totally different from his/ her parents' powers regardless of DNA. Mica can talk to computers while his dad walks through walls and his mom is a schizo bad ass.
In comic books, a parent's powers is usually similar to his offspring's like Green Lantern and Jade, Banshee and Siryn, the kids from Infinity Inc,etc.
Peter and Nathan Petrelli came from the same gene pool and their powers are totally different. Maybe the writers thought it would be boring if the characters had similar powers. I just thought that Claire should have at least inherited some powers from her parents.
Oh well, sabagay, yung mga anak naman ni Magneto ang layo rin ng powers sa kanya.