Two parts to this question:
1) What would I do? Probably nothing. There are very very very few situations in life where I need to consider a race (to whatever degree that makes any sense) as a whole. Individuals matter far more in my life, so I don’t see this as making any difference at all.
2) What would the world do? Now, there might be a problem. Lots of people here make arguments that since it logically doesn’t affect things (much anyway) people would ignore it, but I don’t think thats true. I think some groups would get angry at the study and attack it, and some would use it as an excuse to do whatever they want. Eventually individuals of the “inferior” race would start doing some awesome things and people would eventually forget the study.
Ok, time for a crazy hypothetical. Aliens attack the earth and we find out that they only way to defeat them is to use <insert super awesome technology here>. It turns out that to use it, you need to have certain biological traits and therefore <some race> are the only ones who can do it. I’d say: 1) Cool beans, let them do it 2) Lets honor whichever individuals save us from the aliens and 3) But its not like the members of this race somehow consciously set this up so… lets back to life?
Oh, sorry, “what if my race were the inferior one?” Urm… not much here. I don’t really consider myself part of any groups that I don’t consciously choose to join, so… unless I get attacked for it, I’d probably ignore it (or treat it as an interesting scientific paper) and move on.