Not really.
Breed them, then breed the daughters back to the father (Or to one of the sons) and you'll get a percentage of Xanthic babies. That's really the only way to get them. (Unless if, by a million to one chance, that the female is distantly related to the male.)
Breed them, then breed the daughters back to the father (Or to one of the sons) and you'll get a percentage of Xanthic babies. That's really the only way to get them. (Unless if, by a million to one chance, that the female is distantly related to the male.)