DOMINANT AND RECESSIVE CHARACTERISTICS

Characteristics in the left-hand column dominate over those characteristics listed in the right-hand column.

 

 

 

DOMINANT TRAITS

RECESSIVE TRAITS

eye coloring

brown eyes

grey, green, hazel, blue eyes

vision

farsightedness
normal vision
normal vision
normal vision

normal vision
nearsightedness
night blindness
color blindness*

hair

dark hair
non-red hair
curly hair
full head of hair
widow's peak

blonde, light, red hair
red hair
straight hair
baldness*
normal hairline

facial features

dimples
unattached earlobes
freckles
broad lips


no dimples
attached earlobes
no freckles
thin lips


appendages

extra digits
fused digits
short digits
fingers lack 1 joint
limb dwarfing
clubbed thumb
double-jointedness

normal number
normal digits
normal digits
normal joints
normal proportion
normal thumb
normal joints

other

immunity to poison ivy
normal pigmented skin
normal blood clotting
normal hearing
normal hearing and speaking
normal- no PKU

susceptibility to poison ivy
albinism
hemophilia*
congenital deafness
deaf mutism
phenylketonuria (PKU)

* sex-linked characteristic