Among traits known to be 'dominant' are, besides pigmentation of the

eye, certain peculiarities of the skeleton, such as short-fingeredness
(two phalanges only on each digit), Huntington"s chorea, presenile
cataract, congenital thickening of the skin, early absence of hair,
diabetes insipidus, stationary night-blindness, liability to periodic
outbreak of temper, etc
Among traits known to be 'dominant' are, besides pigmentation of the
eye, certain peculiarities of the skeleton, such as short-fingeredness
(two phalanges only on each digit), Huntington"s chorea, presenile
cataract, congenital thickening of the skin, early absence of hair,
diabetes insipidus, stationary night-blindness, liability to periodic
outbreak of temper, etc.