I just wanted to add that the promethease site showed that I do not have a lactose intolerance gene. I always wondered about that. It also shows if you have a high risk for psoriasis, but there are more than one gene for that. It does not analyze all your genes.
I guess different dna ancestry sites include different DNA segments so you might get different dna genes analyzed depending on which dna ancestry site you used. All I know is that ancestry.com included the skin adhesion gene in their data... so promethease was able to analyze it.