In humans, the ability to roll one's tongue follows the dominant/recessive pattern of inheritance. the allele for tongue-rolling is dominant to the allele for non-tongue-rolling. if two homozygous parents can roll their tongues, what is the probability that their child will also be able to?

The decline of rome was the natural and inevitable effect of immoderate greatness. prosperity led to decay, the causes of destruction multiplied with the extent of conquest; we should be more surprised the empire did not collapse sooner. -- edward gibbon, historian and politician, 1776-1788 ? you! which of the following causes does gibbon highlight (check all that apply)? 1.) wealth led to a decay of roman values. 2.) the empire was too large to govern. 3.) labor-intensive agricultural methods led to a reliance on slave labor. 4.) the lack of economic freedom discouraged hard work innovation. 5.) the common citizens did not have any say in government and no way to seek reform.