Prevalence of Phenylthiocarbamide taste among the Arab Baghdadi population

Phenylthiocarbamide (PTC) is a recessive bimodal autosomal genetic trait among human populations where some people are taster while other non-tester of PTC. The information of this trait important for genetics, anthropologists, biologists, and maybe to clinicians. Hence, this study was conducted to investigate the frequency of PTC in Arab Baghdadi population. A total of 1000 individuals apparently healthy were examined for the trait of tasters and non-tasters using PTC taste strips. Based on the results, of 1000 were tasters 690 (69%) and 310 (31%) non-tasters and who carry the homozygotes recessive (tt) which represented as q and dominants homozygote was represented as p in Hardy Weinberg equilibrium, and the allele frequency of q (t) was 0.556 and p (T) was 0.444and according to Hardy Weinberg equilibrium, the heterozygotes are represented by the 2pq were (0.494) and the number of heterozygotes individuals were calculated 494.