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Mosaic and non-mosaic trisomy 15q2. 1985

E Orye, and G Laureys, and H Verhaaren

Two unrelated patients are presented. In the first mosaicism with normal cells and cells trisomic for the distal long arm (q2) of chromosome 15 was found. The 15q2 trisomy was due to a chromosome 14, to the long arm of which an extra 15q2 region was attached (14pter----14q32::15q22----15qter). In the second trisomy 15q2 was present as a consequence of a balanced t(7;15)(p22;q15) translocation in the mother.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D009030 Mosaicism The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from a single ZYGOTE, as opposed to CHIMERISM in which the different cell populations are derived from more than one zygote.
D002871 Chromosome Banding Staining of bands, or chromosome segments, allowing the precise identification of individual chromosomes or parts of chromosomes. Applications include the determination of chromosome rearrangements in malformation syndromes and cancer, the chemistry of chromosome segments, chromosome changes during evolution, and, in conjunction with cell hybridization studies, chromosome mapping. Banding, Chromosome,Bandings, Chromosome,Chromosome Bandings
D002901 Chromosomes, Human, 13-15 The medium-sized, acrocentric human chromosomes, called group D in the human chromosome classification. This group consists of chromosome pairs 13, 14, and 15. Chromosomes D,Group D Chromosomes,Chromosome, Group D,Chromosomes, Group D,Group D Chromosome
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014314 Trisomy The possession of a third chromosome of any one type in an otherwise diploid cell. Partial Trisomy,Chromosomal Triplication,Chromosomal Triplications,Partial Trisomies,Trisomies,Trisomies, Partial,Trisomy, Partial

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