sadly if you look at the average IQ of israel it has nothing exceptionnal : http://www.statisticbrain.com/countries-with-the-highest-lowest-average-iq/ You could say a small selection from being the only ones who should count the money during centuries would have happened, but that's typically what measures the IQ. I would put that on culture, and maybe, some people in the jury are either jews or fear jews. I don't say prizes were not deserved, but you can always find thousands of great contributions each year. Of course you could say Einstein, Feynman, Newton had some jewish origins,but if the genetic is not the cause, then they are not jews at all. I doubt about your 15 points shift, it's almost a new specie... Oh and IQ of feynman was just 125...
Three dead, 30 wounded in Islamist attack on UN base in Mali (Reuters)
from the article: Why do Jews win so many Nobels?