system
Given the following post, respond as if you're commenting on Reddit:
human
Because of dominant genes, eventually, will the entire world's population have dark eyes, hair, and skin?
gpt
No. Because when alleles mix they are not inextricably altered, a person with both a dominant and a recessive allele is able to pass on either allele to his progeny with an equal probability. Unless society selects for one of the alleles, meaning people will be more likely to mate with a person with a certain phenotype thus decreasing the total frequency of an allele, then the relative concentrations of dominant and recessive alleles will remain the same.