First off: there are no 'races' - we are the human race and we all came
from Africa. Then we wandered around the world and gradually people in
each tribe developed an ideal of what they found attractive and chose
mates accordingly. In the Caucasus you can find bigger noses in one
valley, smaller in the next. Following from this, there are derived
genetic variations that are more concentrated at certain places on
Earth. Hair gets blacker and straighter, eyes browner and with the
typical fold, noses smaller, faces flatter, higher cheekbones, skin
more golden, legs shorter and so on, as one nears the epicentre of
asiatic-ness. East of a line from the Sami (Lapps) of Norway to the
Slavs of Slovenia you begin to notice these traits. But what we don't
see is also typical: the 'mongol spot', a birth-mark often at the base
of the spine, can be found as far west as the English Channel. Asiatics
are often less tolerant of grain-based aclohol, rather than milk-based.
They have grainy ear-wax, rather than sticky. 'European' peoples such
as the Hungarians, Bulgarians and Kalmyks are all of more or less
'asiatic' origin, mixed with those they came across during their
folk-wanderings and found present where they are now settled. So,
between the epicentres of white-ness, black-ness and yellow-ness there
are all the possible permutations of mixture, and because voluntary and
involuntary movement of people has become easier and faster over time,
the original pre-historic distribution pattern of these genetic
variations is getting more and more 'disturbed'. And anyway, we are all
Africans.
Does that help?