A Chance Evolutionary Change Occurring in Small Populations Is Referred

Between 1980 and 1999,the Food and Drug Administration (FDA)approved 52 new antibacterial drugs.Only 8 new antibacterial drugs gained approval between 2000 and 2012.The lack of new antibacterial drugs may contribute to the ________ selection of antibiotic-resistant bacteria.

In an original population of 30 mice,the frequency of dark-fur-pigment alleles is 57% and the frequency of white-fur-pigment alleles is 43%.  Ten generations later,the population of 30 mice now has 28 dark-fur-pigment alleles and 32 white-fur-pigment alleles?  What are the new allele frequencies?  Is there evidence of ongoing evolution?  Explain.