Consider:
1. Matt's telepathic power and his Dad's mental "I can see you" power.
2. Micah's electronic wizardy and his cousin Monica's "electronic TV" learning (not clear at this time if she can super-mimic anything she sees or only things that are shown electronically*).
3. The Super Twins viral propagation/prevention.
However, Hayden's is different from her Mom and Dad Nathan. Micah is different from D.L. and Niki (although you can argue they all have "manipulation" type powers). And Nathan and Peter have different powers. In these cases, perhaps if a family has multiple different powers, then other family members will have similar power to 1 of the multiple powers that's "available".
* Please Monica. Stay away from goatse.
