Achange in the frequency of any mutant allele in a population most likely depends on the

The answer is ‘the degree of dominance of the selected allele with respect to fitness’. If natural selection favors the mutation, the allelic frequency will increase in the population. However, if the mutation is disadvantageous to the individuals with it, the allelic frequency will decrease and probably become lost.  

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this