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Case Reports
. 1993 Aug;53(2):433-42.

Characterization of supernumerary ring marker chromosomes by fluorescence in situ hybridization (FISH)

E Blennow  1 , G Annerén, T H Bui, E Berggren, E Asadi, M Nordenskjöld
Affiliations
Case Reports

Characterization of supernumerary ring marker chromosomes by fluorescence in situ hybridization (FISH)

E Blennow et al. Am J Hum Genet. 1993 Aug.

Abstract

Five cases with small supernumerary ring chromosomes are characterized at the molecular level. Routine chromosome banding analysis was insufficient for identification of the ring chromosomes, and none of them was DA/DAPI positive. Fluorescence in situ hybridization utilizing repetitive centromeric probes for all chromosomes has determined that one of these five ring chromosomes originates in each of chromosomes 4, 7, 8, 9, and 20. Chromosome painting with chromosome-specific libraries has confirmed this and excluded the involvement of additional chromosomes in the rearrangements.

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