what prevents genetic mutations from been instantly diluted when occuring in a single representative of a species?
Does the same genetic mutation occur several times across the board in a species. Or does the one gene carrier have to reproduce numerous times?
And how does the mutated gene survive the reproduction process if the mutation provides an incompatible feature?
For instance if I developed the ability to withstand malaria but only had one child and that child only had a couple of offspring when does the feature become a predominant one across a whole species?
If all cows have have hooves than that feature was some how shared widely to create a new species with millions of members that all reproduce compatibly.