Yawnz...
This is no such thing as "white or non-white DNA(genetic markers in DNA I suppose)". A typical North-Western European can have numerous types of genetic markers, with high frequency in North Western Europe, also being found in India and Northern China with somewhat less frequency within a sample size or randomly chosen population.
19th century classical antropologist used observarable physical traits to divided human into major races but such theoy fails in present era due to two major reasons.
1) The traits chosen to group people are arbitrary, such as the classified characteristics for instance skin colour, skull shape and hair texture. For example If someone chose a different approach to analyse the same set of organs/body parts but looking for different particular characteristics, the result can be vastly different.
2) Outer physical traits are very malleable and significant changes occur between centuries, if not decades as it is very largely determined by the influence of outer environment, eg climate and the nutrition we receive. This is very different from analysing DNA which contain segments unchanged since we stepped out from Africa.
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