Summary
By application of the “centroid” method of Barton, David and Merrington to a number of H3-thymidine radioautographs, it was determined that the human late-replicatingX chromosome lies towards the periphery of the metaphase in a significant number of cases. Further, in agreement with earlier findings by other authors, the centromeres of chromosomes 1, 2 and 3 were found to lie closer together than is to be expected on a random hypothesis.
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This work was supported by grants from the World Health Organization, the Indian National Science Academy, grants CA-05903 (now GM-17551) and CA-06927 from the National Cancer Institute, U.S. Public Health Service, and by an appropriation from the Commonwealth of Pennsylvania.
This paper is dedicated to the late Jack Schultz, who to our knowledge was the first to have recognized the phenomenon of scmatic association in human cells. Two of us (H. S. C. and D.A.H.) remain personally indebted to him for sound guidance, generously given, over an interval of many years.
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Chandra, H.S., Narayana, A.K.A., Buche, V.V. et al. Peripheral location of the human late X and homologous association of autosomes numbers one, two and three. J Genet 61, 78–83 (1972). https://doi.org/10.1007/BF02984102
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DOI: https://doi.org/10.1007/BF02984102