I'm a mongrel.
On my father's side I have Spanish (37.5%), Japanese (12.5), Chinese (25%), and Filipino (25%)...
On my mother's side I have Spanish (25%), Chinese (25%), Indian (12.5%), and Filipino (37.5)...
The common denominators are Spanish, Chinese and Filipino. Majority of the mix in my blood is Spanish and Filipino.
I have read from most sources Thalassemia trait is prevalent on Europeans and Caucasian descents... so it must be from my Spanish descent.