The trait is now extinct and was never fully characterized.Diplopodia-3
This is an autosomal trait that may be the least severe of the five. Diplopodia-4
This sex-linked mutation is similar to the previous mutations, but causes the embryo to grow thicker wing bones.Diplopodia-5
This is an autosomal mutation that gives embryos webbing between the inner two front toes on each foot, in addition to the usual characteristics of diplopodia. Almost all of the embryos survive to the end of incubation, but they are unable to clear the fluid from their lungs or absorb the blood from their extraembryonic vessels. These problems always prevent them from hatching. Almost all diplopodia-5 embryos have only one or two extra toes on each foot, so this mutation causes the least extreme foot malformation. See also
Limb development
Congenital abnormality
Dysmelia
Sonic hedgehog
Polydactyly


== References ==
Paleness may refer to:

Pallor, a medical condition
Paleness (color)

See also
Pale (disambiguation)