No,there is a genetic link to strength & speed which can be enhanced with training, but with intelligence there is no Gene responsible for it & its enviromental circumstances that affect a persons intelligence,not the breeding. Eugenics dont come into it at all.
I find it fascinating that there is no gene associated with the one thing that really seperates us from the natural world.
Also studies on brain size showed that larger brains in some cultures (larger skull size)had no influence on intelligence & in some cases the opposite is true...The Chinese for example, have a smaller average brain mass than Europeans,but have a higher average IQ & this is attributed directly to it being a confucian culture that for generations has placed a cultural onus on education.
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