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?

two factors or characteristics of a chapter that might make it difficult to read would be words i don't understand, or if i don't fully understand what's going on in the chapter. strategies i can use to get through the difficult material would be a dictionary, and re-reading previous chapters to get a better grasp of what the author is trying to say.