4) To figure the phenotypic ratio, count the number of individuals with either the dominant or recesssive or9:3:3:1 phenotype for both traits! Then that ratio would be something like 4:4:4:4 Can roll tongue- RR, RrAttached earlobes- EE, Ee Can’t roll tongue – IT PTC-taster- TT, Tt Non-PTC taster – tt Free earlo… Show more… Show more Science Biology BIO 123 Share QuestionEmailCopy link Comments (0)