THE MEASUREMENT OF TASTE SENSITIVITY TO PHENYLTHIOUREA (P.T.C.)

Taste Sensitivity to Ptc and Colour Blindness in Estonians

The article discusses the genetic characterisation of Estonians on the basis of the traits of PTC and colour blindness in Estonian population samples from various parts of Estonia. The taste sensitivity to PTC was studied in 2559 Estonian schoolchildren from 24 localities and of colour blindness in 4300 males from 33 localities. Results: The frequency of nontasters was 25.4% on average; t gene ...

Taste Sensitivity to PTC and Incidence of Colour Blindness Among the Schedule Castes of District Mandi, Himachal Pradesh

PTC taste sensitivity in 146 Chamar and 138 Koli from Dist. Mandi, H.P reveals bimodal distribution of tasters and non-tasters; the incidence of tasters being 71.91% for Koli. There is a non-significant difference in their ability to taste PTC (χ = 1.9080) among Chamar and Koli. The percentage of incidence TASTE SENSITIVITY TO PTC AND INCIDENCE OF COLOUR BLINDNESS January 2003 59 of colour blin...

Genetic diversity of PTC taste sensitivity among tribal and caste populations of Andhra Pradesh, India.

The present paper reports the variability of PTC taste sensitivity among eight endogamous tribal populations inhabiting the Eastern Ghats of North Coastal Andhra Pradesh. It was compared with the genetic diversity of PTC taste sensitivity among tribal and caste populations of Andhra Pradesh. The tribal and caste groups present a relatively high genetic diversity, of which a major proportion is ...

Genetics of Sensory Thresholds: Variations within Single Individuals in Taste Sensitivity for PTC.

Evolution of functionally diverse alleles associated with PTC bitter taste sensitivity in Africa.

Although human bitter taste perception is hypothesized to be a dietary adaptation, little is known about genetic signatures of selection and patterns of bitter taste perception variability in ethnically diverse populations with different diets, particularly from Africa. To better understand the genetic basis and evolutionary history of bitter taste sensitivity, we sequenced a 2,975 bp region en...