Yes, there is. I tested with Ancestry and I am 36% Scandinavian. My grandmother was from Norway. (25%). The rest comes from Scotland and England - those Vikings got around...
I guess so. For as much as these DNA tests can be believed, I'm apparently almost equal parts Irish and Norse with a smattering of other northern European types mixed in.
No wonder I like whiskey and roaming around so much! ;-) But yeah, if reasonably accurate, our branch of the family tree is apparently the byproduct of a raiding party perhaps???