The appearance of particular chromosomes in constitutional translocations and rings in man.
D002869:Chromosome Aberrations; D002901:Chromosomes, Human, 13-15; D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D012730:Sex Chromosomes