A Phenylthiocarbamide Test
نویسندگان
چکیده
منابع مشابه
The genetics of phenylthiocarbamide perception.
The ability to taste the bitter compound phenylthiocarbamide (PTC) and related chemicals is bimodal, and all human populations tested to date contain some people who can and some people who cannot taste PTC. Why this trait has been maintained in the population is uncertain but this polymorphism may influence food selection, nutritional status or thyroid metabolism. The gene product that gives r...
متن کاملPhenylthiocarbamide tasting in a sample of twins.
1. Twenty-eight pairs of monozygotic and eighteen pairs of dizygotic twins were tested for their ability to taste phenylthiocarbamide (P.T.C.) by the method of Harris & Kalmus (1949). 2. Much greater variance in threshold levels was detected within the DZ than within the MZ pairs and this confirms the genetic origin of most variation in ability to taste this substance. 3. Variance in threshold ...
متن کاملPhenylthiocarbamide produces conditioned taste aversions in mice.
Previous work has demonstrated that SWR/J (SW) mice avoid phenylthiocarbamide (PTC) to a greater degree than C3HeB/FeJ mice in 48 h, two-bottle preference tests given in ascending series. The authors hypothesized, based also on previous work, that SW mice might form a conditioned taste aversion over time due to the toxic properties of PTC. We directly tested this hypothesis by attempting to con...
متن کاملThe Action of Phenylthiocarbamide on Tyrosinase
Richter and Clisby (1) have investigated the t,oxic effect of phenylthiocarbamide in rats. The acute toxic effect is characterized by an effusion of fluid into the thoracic cavity, but in chronic poisoning there is a lowered body temperature, which suggests a depression of metabolism, and compensatory changes in the thyroid. It was therefore of interest to test the effect of the drug in vitro o...
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the major aim of this study was to investigate the relationship between iq, eq and test format in the light of test fairness considerations. this study took this relationship into account to see if people with different eq and iq performed differently on different test formats. to this end, 90 advanced learners of english form college of ferdowsi university of mashhad were chosen. they were ask...
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ژورنال
عنوان ژورنال: Nature
سال: 1960
ISSN: 0028-0836,1476-4687
DOI: 10.1038/186970a0