Complex sentence: The urajiro pattern is expressed in the tan (phaeomelanin) areas of any dog who is not e/e. In e/e dogs, the urajiro gene causes dilution of the entire dog to off-white or cream.
Split into simpler sentences: The urajiro pattern is expressed in the tan (phaeomelanin) areas of any dog who is not "e/e". In "e/e" dogs, the urajiro gene causes dilution of the entire dog to off-white or cream.