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Eur J Obstet Gynecol Reprod Biol. 1993 Aug;50(3):235-42.

Molecular cytogenetics: applications in clinical genetics.

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Institute of Human Genetics, University of Aarhus, Denmark.


To illustrate the advantage of fluorescence in situ hybridization (FISH) in clinical genetics, we have chosen six clinical cases from our routine laboratory where we have used molecular cytogenic techniques to optimise the cytogenetic analysis. Using centromere-specific DNA probes and whole chromosome DNA libraries either obtained from somatic cell hybrids or generated from flow-sorted chromosomes, we have been able to identify small marker chromosomes, chromosomal duplications and inversions, to determine the ploidy in interphase nuclei, and to characterize subtle chromosomal translocations. We conclude that molecular cytogenetics is a valuable technique that should be used as a supplement to conventional cytogenetics to reduce the number of unresolved karyotypes in clinical genetics.

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