The results suggested that each of the Wnt genes (Wnt - 2b, Wnt - 8c, Wnt - 3a) were responsible
for turning on two forms of FGF, each of which controls both limb initiation and a bud or bulge known as the apical
ectodermal ridge (AER), which acts as the «organizer» of limb development.
Ectodermal Dysplasia - Hairless This type of
Ectodermal Dysplasia is responsible
for hairlessness as well as dental abnormalities in the Chinese Crested, Mexican Hairless, and Peruvian Hairless breeds.