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My Genetic TraitsLauryn Funteas, Kari Free,
Lauren Clayton
Phenylthiocarbamide (PTC) paper I can taste it Vs.
PTC tasting is dominant
75% of individuals taste the bitter flavor
I cannot taste it
Non-tasting is recessive
25% of individuals do not taste the bitter flavor
Ear lobes
Attached
Recessive trait
Detached Vs.
Dominant trait
Dimples
Dimples Vs.
Dominant trait
No Dimples
Recessive trait
Freckles
Freckles Vs.
Dominant trait
No Freckles
Recessive trait
Tongue Rolling
Rolling Vs.
Dominant trait
Non-rolling
Recessive trait
Hand clasp
Right thumb on top Vs
44% of people
Left thumb on top
55% of people
Cleft chin
Cleft chin Vs.
Dominant trait
Non-cleft chin
Recessive trait
Thumb
Straight thumb Vs.
Dominant trait
Curved thumb
Recessive trait
Hairline
Straight Vs.
Recessive trait
Widow’s Peak
Dominant trait
Hair Type
Curly hair Vs.
Dominant trait
Straight hair
Recessive trait
Class Data