in DNA and physically. Check out this thread. majority of Uyghurs are from the south and they look from pure Caucasian like Afghanistan to Europe where as north Uyghurs majority are people like Kazakhstan
http://www.theapricity.com/forum/showthread.php?155943-Turkey-vs-Uyghur-DNA-physical-attributes-%28-Turks-Including-Mongols-Kazakhs-Armenian-%29
http://www.theapricity.com/forum/showthread.php?155943-Turkey-vs-Uyghur-DNA-physical-attributes-%28-Turks-Including-Mongols-Kazakhs-Armenian-%29