This is not how mutation work [1]. If over several generation we "selected" women/men that "yield" more man then women (if such a thing is even coded in some g

This is not how mutation work [1]. If over several generation we "selected" women/men that "yield" more man then women (if such a thing is even coded in some genes which, as far as i know, we have no clue), we would slowly make this trait more frequent, increasing the issue. But this looks more like a bad sci-fi novel setup than something possible. [1] By that I mean: Mutation are not "created" by the environment. Evolution theory shows that we "select" mutation which will then become present in the majority of the population over several generation (provided that the mutation can be passed to offspring and yield a significant benefit that will last over several generation). Mutation happens all the time in your body, although, if i remember my high school biology class, most of them get "fixed". And mutation are only one of the many "tools" that help create diversity (chromosome recombination for example).