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Peas in a Pod: The Story of Heredity. What determines the type of ice cream that you prefer; childhood experience and exposure to the flavor or your inherited traits?. - PowerPoint PPT Presentation
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Peas in a Pod: The Story of Heredity
What determines the type of ice cream that you prefer; childhood experience and exposure to the flavor or your inherited traits?
PTC (phenylthiocarbamide)The ability to taste PTC (or not) is conveyed by a single gene that codes for a taste receptor on the tongue. The PTC gene, TAS2R38, was discovered in 2003. Studies suggest a correlation between
the ability to taste PTC and preferences for certain types of food (“PTC: Genes,” n.d.)
Are you a taster or a non-taster?
The PTC gene has about 85% of the total influence over whether someone is a taster or a non-taster (“PTC: Gene,” n.d). Environmental factors can influence PTC tasting.
Inherited vs Acquired Traits
Kahoot!
inherited trait: a genetically determined characteristic or quality that distinguishes someone or something Inherited traits are passed in DNA from parents to their offspring.
acquired trait: develops during the lifetime of the organism but are not in the organism’s DNA and are not inherited by its offspringAcquired traits are often learned.
Dominant and
Recessive Genes
Dominant + Dominant = Dominant
Dominant + Recessive = Dominant
Recessive + Recessive = Recessive