Indeed, imo, from genetical point of view, turks lost almos all original mongoloid traits. But, in average, i think they inherited arabic&semitic genes, rather to european. The genetic heritage, in general, have not much to do with identity. The magyars, original a turkik people, have now quasi-european genes, but they preserved the original identity and language
Lots of Turks have slavic (mostly southern I would say but also northern brought in the ottoman empire as slaves) or Greek origins though. I have a turk friend who is blond with green eyes and is often confused for a German. I have also seen a lot of Turks with northern mediterranean features reminiscent of what one could see in Yougoslavian countries, Greece, Romania etc.
this is just a theory! as I know, they have common lexic more with turkish than with finish
