Abnormal chromosomal arrangements in human oocytes.

@article{Maas1990AbnormalCA,
  title={Abnormal chromosomal arrangements in human oocytes.},
  author={Ervin Ma{\'c}as and Y. Floersheim and E. Hotz and Bruno Imthurn and Paul J. Keller and Heinrich Walt},
  journal={Human reproduction},
  year={1990},
  volume={5 6},
  pages={
          703-7
        }
}
Ninety-one human oocytes, lacking signs of fertilization 50 h after insemination in vitro, were investigated cytogenetically to assess the frequency and type of chromosomal abnormalities. Chromosome spreading permitted adequate karyotyping in 55 oocytes. Non-determined numerical aberrations occurred with the following frequencies: hypohaploidy, 10.9% (6/55), hyperhaploidy, 14.5% (8/55) and hyperdiploidy, 3.6% (2/55). Total aneuploidy occurred with a frequency of 29.1% and was observed in… CONTINUE READING

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