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Quantitative studies on the arrangement of human metaphase chromosomes

โœ Scribed by H. Zankl; D. Michaelsen; K. D. Zang

Publisher
Springer
Year
1979
Tongue
English
Weight
288 KB
Volume
49
Category
Article
ISSN
0340-6717

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โœฆ Synopsis

The association pattern was studied in 1182 mitoses of 21 patients with trisomy 13 and in a control group. In addition, 173 trisomic mitoses were compared with the same number of diploid mitoses in a case of mosaicism. The number of mitoses with associations was no higher in the trisomic cells than in cells with normal karyotypes. Some differences were observed in the frequency of associations per cell and of the types of associations in the patient group and in the trisomic cells of the mosaic case. The number of associations in which more than two acrocentric chromosomes were involved was unexpectedly low in the cells with a supernumerary chromosome 13. The results are interpreted as suggesting the existence of a compensatory mechanism activated by the additional acrocentric chromosome.

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Quantitative studies on the arrangement
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โœ H. Zankl; K. D. Zang ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Springer ๐ŸŒ English โš– 410 KB

The association pattern was studied in 2715 mitoses of 90 meningiomas with different numbers of acrocentric chromosomes. In cells with monosomy 22, a significant increase of mitoses with associations was observed in comparison to cells with a normal karyotype. The number of associating acrocentric c

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The pattern of association of acrocentric chromosomes was examined in ten and five carriers of a 15/21 and a 13/14 Robertsonian translocation, respectively, and was compared with that of the same numbers of relatives with normal karyotypes. In the carriers of 15/21 translocation, the number of large