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PTC ESSAY FLASHCARDS
PTC Essay for Exam Two
6
Anthropology
Undergraduate 3
10/13/2012

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Term
What is PTC and why is it significant?
Definition
PTC is phenylthiocarbamide. People who are TT and Tt can taste it, tt cannot
Term
Where are people who can taste PTC found?
Definition
there are tasters in almost every population, but there is a wide variation. example : less than 2% of aboriginals in Taiwan, but over 40% in Bombay. Most European and European-derived populations have frequencies around 50%
Term
How do people who can taste PTC adapt?
Definition
he bitter taste is caused by thiocyanate which is in cabbage, turnips, mustard greens and casava which lots of people eat and avoidance of bitter-tasting foods may be an advantage for tastes
Term
What are the implications of PTC adaptation?
Definition
nontasters may be more susceptible to thyroid deficiencies, nontasters have more goiters. One hypothesis explaining taster polymorphism is that persons able to reject CNS-bearing plants would reduce the degree of thyroid interference in contrast to nontasters, which could be a major advantage among populations in iodone-poor areas, helps maintain normal metabolic levels
Term
The genetics behind PTC?
Definition
nontasters may be more susceptible to thyroid deficiencies, nontasters have more goiters. One hypothesis explaining taster polymorphism is that persons able to reject CNS-bearing plants would reduce the degree of thyroid interference in contrast to nontasters, which could be a major advantage among populations in iodone-poor areas, helps maintain normal metabolic levels
Term
Cultural implications?
Definition
food that the cultures eat would be affected?
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