The authors declare that there is no conflict of interest.Graph showing of mean threshold values of males, females and combined populations for PTC trait of North IndiaGraph showing threshold distribution of PTC trait among combined population groups of North IndiaGraph showing Heterozygosity and Homozygosity for PTC tasting ability among different Muslim Populations of North IndiaThe population of Aligarh is composed of Hindus, Muslims and Christians. The Bitter Truth About PTC Tasting Asking students to taste PTC-soaked paper is a classic classroom exercise to demonstrate a simple inherited trait. At first subjects were asked to taste two drops of PTC solution. Some researchers reported a bitter taste when entering his laboratory, while others, including Fox himself, experienced no such sensation. Among them 400 were males and 421 were females. PTC tasting ability was measured by using a serial dilution method of Harris and Kalmus.Allele frequency for PTC tasting ability in North Indian Muslim PopulationsGraph showing phenotype frequencies for PTC tasting ability among different Muslim Populations of North IndiaThe annual average rainfall in the district is 594.1mms and maximum temperature recorded is 44°C.The present study revealed genetic affinities among different populations. The last solution was most dilute and designated as solution no. Out of a total number of about 1124 individuals, only 821 individuals consented to participate in this study.
16. The samples were collected from the Upper Court, Civil Lines, Hamdard Nagar, Friends Colony, AMU Campus, Sir Syed Nagar and Jamalpur areas of Aligarh.A solution of 0.13% of PTC was prepared by dissolving 130 mg of the PTC in 100ml of water (solution 14). Physiol Behav. Chart created by the NIDCD Epidemiology and Statistics Program, based on Guo & Reed (2001).This figure shows that the ability to taste phenylthiocarbamide (PTC) varies significantly from one population to another worldwide. [text version] Chart created by the NIDCD Epidemiology and Statistics Program, based on Guo & Reed (2001).
have been completely observed by the authors. We are also grateful to the volunteers and study subjects for their kind participation and cooperation during this study. "PTC perception is arguably one of the most studied human traits," says Sun-Wei Guo, a professor of pediatrics and biostatistics at the Medical College of Wisconsin in Milwaukee. Such tasting ability correlates with the number of fungiform papillae, as well as sensitivity to some other agents (e.g., NaCl, sucrose), begging the question as to whether sensitivity to PROP is a simple reflection of the number of taste buds. ; Syed, Sheikh, Pa-than, Shia, Sherwani and Ansari. Aim.
In overall population, it is interesting to note that the males show a higher mean threshold value than females.The aim of the present study was to analyze the gene frequency, relative fitness value and threshold distribution for phenylthiocarbamide among some Muslim Populations of Uttar Pradesh, India to show their genetic heterogeneity. The dilution number when tasted positive was recorded.
His or her general particulars (address, age, sex, ethnic group) were recorded. It has the unusual property that it either tastes very bitter or is virtually tasteless, depending on the genetic makeup of the taster. Bufe B, Breslin PA, Kuhn C, Reed DR, Tharp CD, Slack JP, et al. Threshold levels for PTC were then recorded for males and females of each population. 1.
Tasting ability to phenylthiocarbamide (PTC) by an individual is considered as a useful and important tool to study the genetic diversity in human populations.
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