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