Abstract
THE demonstration of chromosome preparations has suffered from two serious difficulties in the past. First, the solid form of the object has to be reconstructed from images at different focuses, and it is impossible to be sure that an inexperienced observer has been able to do this. Secondly, chromosome behaviour in general has to be reconstructed from the observation of a great many cells, and their separate demonstration to one student, let alone a large number, is out of the question.
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DARLINGTON, C., OSTERSTOCK, H. Projection Method for Demonstration of Chromosomes in situ. Nature 138, 79 (1936). https://doi.org/10.1038/138079a0
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DOI: https://doi.org/10.1038/138079a0
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