Examples: Dominant and Recessive Traits

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Dominant and Recessive Traits

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Presentation transcript:

Examples: Dominant and Recessive Traits

What are your traits? We will look at some examples of human traits that are determined by simple genetics. On your hand-out, record which phenotype you exhibit. You may have to ask your partner to help you determine a trait.

Detached (EE, Ee), Attached (ee) Earlobes http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Can Tongue Roll (TT, Tt), Can’t (tt) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Dimples (DD, Dd), No Dimples (dd) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Right handed (RR, Rr), Left handed (rr)

Freckles (FF, Ff), No Freckles (ff) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Curly (HH, Hh), Straight (hh) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Cleft Chin (CC, Cc), Smooth(cc)

Cleft Chin (CC, Cc), Smooth (cc) (actual pictures)

Hand Clasp: Left (LL, Ll), Right (ll) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

Widow’s Peak (WW, Ww), Straight (ww) http://teach.genetics.utah.edu/content/heredity/docs/InventoryComplete.pdf

What are your traits? We will look at some examples of human traits that are determined by simple genetics. On your hand-out, record which phenotype you exhibit. You may have to ask your partner to help you determine a trait.

Data We will now record our class data and graph our results Does our data support which genes are dominant and which genes are recessive? What about the whole Purple Team?