. The main feature of out-crossing is that-
(a) Superior male of one breed are mated with superior female of another breed
(b) Two pedigree should not have common ancestors for 4-6 generations
(c) This is the breeding of unrelated animals
(d) This is the breeding between related animals
(b) Out-crossing is the practice of mating of animals within the same breed but having no common ancestors on either side of their pedigree up to 4-6 generations.