"Barriers" in intragenic mitotic crossing-over.
D000483:Alleles; D001230:Aspergillus; D002875:Chromosomes; D003434:Crossing Over, Genetic; D004171:Diploidy; D005796:Genes; D006579:Heterozygote; D008938:Mitosis; D009154:Mutation; D011995:Recombination, Genetic