Abstract
MULLER and Painter1 showed that more than one-third of the X-chromosome is almost inert genetically and corresponds to a section of the Y, and Friesen2 obtained crossing-over of autosomal genes in males by exposure to X-rays. It therefore seemed worth while investigating whether crossing-overtakes place between the X- and Y-chromosomes in the male during normal meiosis. The gene under investigation, bobbed (shorter and finer bristles on the thorax), is the only one so far located both in the inert region and the Y-chromosome.
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References
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PHILIP, U. Spontaneous Crossing-over between X- and Y-Chromosomes in Drosophila melanogaster. Nature 133, 726 (1934). https://doi.org/10.1038/133726a0
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DOI: https://doi.org/10.1038/133726a0
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