2) Note the white “collar” in this border collie, a feature that is quite common in domestic dogs. From what you know about the domestication syndrome, provide the best hypothesis to explain this specific feature of its coloration pattern. (1 pt) i) different temperature by the neck ii) different pigment synthetic pathway in cells in neck region iii) likely derived from ancestral pattern iv) gap not filled by migration of cranial and trunk neural cells v) patches due to X-inactivation