Most Turks today are not biologically TURKISHMost Turks today will not admit this but DNA does not lie. Ethnic background of Turkey is very diverse. Conquerers and conquered people. "Turkish speaking people" would be right description for determining turks
A good percentage (appx 5-10 %) of turks are crimean tatars you then those who are from this nomadic turkic group others who are from turkicized autochthonous anatolia's people and turkicized Balkan peoples (mostly balkan slavs*, greeks, albanians)
Says a turkish historian*Balkan slavs= Pomaks, Bosniaks, Torbeshes