Crossing-over in tandem duplications.
D000818:Animals; D002874:Chromosome Mapping; D002875:Chromosomes / Q000032:analysis; D003434:Crossing Over, Genetic; D004330:Drosophila; D005260:Female; D006579:Heterozygote; D006720:Homozygote; D008297:Male; D008433:Mathematics; D012469:Salivary Glands / Q000166:cytology*