Is the brain exempt from being affected by genetics? All humans are genetically pre-disposed to be less capable of being racecar drivers or olympic athletes or

Is the brain exempt from being affected by genetics? All humans are genetically pre-disposed to be less capable of being racecar drivers or olympic athletes or physicists. Inherrantly what is it about being a programmer, that necessitates we assume that biology plays no part whatsoever? Note the use of the word biology as opposed to gender, because limiting the context to gender needlessly pits people against each other.