Context: On the other hand, I2a1b1 (P41.2) is typical of the South Slavic populations, being highest in Bosnia-Herzegovina (>50%). Haplogroup I2a2 is also commonly found in north-eastern Italians. There is also a high concentration of I2a2a in the Moldavian region of Romania, Moldova and western Ukraine. According to original studies, Hg I2a2 was believed to have arisen in the west Balkans sometime after the LGM, subsequently spreading from the Balkans through Central Russian Plain. Recently, Ken Nordtvedt has split I2a2 into two clades – N (northern) and S (southern), in relation where they arose compared to Danube river. He proposes that N is slightly older than S. He recalculated the age of I2a2 to be ~ 2550 years and proposed that the current distribution is explained by a Slavic expansion from the area north-east of the Carpathians.

Question: I2a1b1 is typical of what populations?
Answer: South Slavic populations

Question: I2a1b1 is found being highest where?
Answer: Bosnia-Herzegovina

Question: Haplogroup I2a2 is commonly found in what group of people?
Answer: north-eastern Italians

Question: Hg I2a2 was believed to have arisen where?
Answer: west Balkans

Question: Who has split I2a2 into two clades?
Answer: Ken Nordtvedt

Question: What percentage of north-eastern Italians have I2a1b1?
Answer: Unanswerable

Question: Where did I2a1b1 originate?
Answer: Unanswerable

Question: What preceded l2a1b1?
Answer: Unanswerable

Question: Who split LGM?
Answer: Unanswerable

Question: How old is I2a1b1 calculated to be?
Answer: Unanswerable