The formation of the abnormal chromosome in balanced homologous Robertsonian translocation carriers.
D001773:Blood Cells / Q000166:cytology; D002869:Chromosome Aberrations; D002901:Chromosomes, Human, 13-15; D005187:Fallopian Tubes / Q000166:cytology; D005260:Female; D005306:Fertilization; D006579:Heterozygote; D006801:Humans; D007621:Karyotyping; D009030:Mosaicism; D010053:Ovary / Q000166:cytology; D012867:Skin / Q000166:cytology; D013194:Staining and Labeling