Paramutations differ from other types of mutations in that: a. paramutations can be passed to new generations, even in the absence of the original allele. b. paramutation can only occur in cytoplasmic DNA c. they are changes of DNA sequence triggered by deamination. d. All of the above. e. None of the above. The evolutionary force of _____ tends to increase genetic variation within a population but decrease genetic variation between populations, while the evolutionary force of _____ tends to decrease genetic variation within a population but increase genetic variation among populations. a. migration; genetic drift b. mutation: some types of natural selection c. drift; migration d. some types of natural selection: mutation e. positive assortative mating: negative assortative mating