The exact outcome of the two processes depends both on the rate at which new mutations occur and on the strength of the natural selection, which is a function of how unfavourable the mutation proves to be.
Asil sané becik saking makakalih proses punika manut saking gelisnyané pamargin mutasi anyar taler ring kawéntenan seleksi alam, sané dados fungsi saking nénten beciknyané  mutasi punika.