Publication: Spontaneous fragility of an abnormally wide secondary constriction region in a human chromosome No. 9
Spontaneous fragility of an abnormally wide secondary constriction region in a human chromosome No. 9
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Schmid, W., & Vischer, D. (1969). Spontaneous fragility of an abnormally wide secondary constriction region in a human chromosome No. 9. Human Genetics, 7, 22–27. https://doi.org/10.1007/bf00278689
Abstract
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Abstract
In an infant with clinically and cytologically typical DOWN'S syndrome a chromosome No. 9 was found exhibiting an exceptionally large paracentric constriction which proved to be spontaneously fragile. In cells in which this chromosome was broken the centric portion was present whereas the acentric fragment was absent. A No. 9 chromosome with identical morphology was found in the karyotype of the father but no fragility was evident. Autoradiography revealed pronounced late replication in the constriction region, suggesting a duplicatio
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- Schmid, Werner
- Vischer, D
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Schmid, W., & Vischer, D. (1969). Spontaneous fragility of an abnormally wide secondary constriction region in a human chromosome No. 9. Human Genetics, 7, 22–27. https://doi.org/10.1007/bf00278689
