Genetic tests were carried out all over the world among many other populations. As for the rise of racism in Israel, maybe you should remember that Israel is at war with its neighbors. War always fosters racism. Furthermore, the stats show that Israel is the least racist country in the Middle East. Yes, a little bit more than 50% of Israeli Jews express racist opinions toward the Arabs. However, in ALL Arab countries, it's more than 90% of the population that is antisemitic. Last but not least, even among Oriental Jews who were forced to flee Arab countries because of the pogroms (not punished by the authorities) and the persecusions they endured after the creation of Israel, anti-Arab racism is not as high as antisemitism in the Arab world. As for the Serbian, the Croatian and the Bosnian nation, they did not exist before the 19th Century. A medieval kingdom with no popular sovereignty, and no national solidarity, is not a nation.
5 wounded Syrians rushed to northern Israeli hospital (Haaretz)