That's not how intelligence manifests. "Geniuses" are usually products of opportunity as much as anything. Indeed I am minded of a "where are they now" on british television of some University Challenge winners and despite being believed to be geniuses most of them had not done anything remarkable.

Intelligence definitely does have a genetic component - but again that isn't how genetics works. The "UN Man" Tabula Rasa doctrine is ideology, not science.

https://www.nature.com/articles/nrg.2017.104