Speciation is facilitated in small, isolated populations because: a) founder effects may create uniform genetic backgrounds, converting interactive variance genetic to additive genetic variance. b) founder effects may create uniform genetic backgrounds, converting dominance variance genetict to additive genetic variance. c) founder effects may create uniform genetic backgrounds, converting linkage disequalibrium to additive genetic variance. d) founder effects may create uniform genetic backgrounds, converting additive genetic variance to a non-random sample of the population. e) none of the above.