Residual family resemblance for PTC taste sensitivity.
Complex segregation analysis reveals no evidence for incomplete dominance, polygenic variation, or an effect of family environment on PTC sensitivity. Estimates of gene frequency and displacement from a phenotypic trichotomy agree closely with conventional values for the the dichotomy of tasters vs. nontasters.
D005787:Gene Frequency; D006801:Humans; D008433:Mathematics; D010641:Phenotype; D010670:Phenylthiourea; D013649:Taste
D010670:Phenylthiourea