The ability to such as Brussels sprouts depends on allele which is dominant to non tasting tt A couple has a daughter and a son Both parents can taste bitter but their daughter cannot taste bitter bitterness in ce a What is the probability that their son can taste bitter foods b How does the phenotype of the daughter help you answer this question c When he is tested their son can taste bitter foods He marries a woman who cannot taste bitter foods and they have a son What is the probability that their son the grandson of the original couple will be able taste bitter foods d Looking ahead Speculate about the cellular and molecular biology of the ability to taste bitter chemicals What function might the T gene encode How might this explain which allele is recessive and which allele is dominant What type of protein could have this function e Looking ahead and back Check your speculation from Part d about molecular biology of this trait by doing an internet search for the ability to taste bitter chemicals in humans and see if you can answer the following questions Do gorillas and chimpanzees our closest living relatives have the ability to taste bitter chemicals Why might the ability to taste bitter chemicals provide a selective advantage in humans that LICE