Complex sentence: Alternatively, larger populations are affected less by genetic drift because drift is measured using the equation 1/2N, with "N" referring to population size; it takes longer for alleles to become fixed because "N" is higher.
Split into simpler sentences: Alternatively, larger populations are affected less by genetic drift because drift is measured using the equation (1/2N), with "N" referring to population size. In larger populations, it takes longer for alleles to become fixed because "N" is higher.