Abstract
IT is well known that great difficulties are involved in counting the exact chromosome numbers from mammalian species which have a large number of chromosomes. In the past decade different results have been presented which indicate a variation in the chromosome number in different tissues even within a single mammalian species, including man1; but in many cases the variation shown is apparently a result of errors in the counting or in the technique used, for example, in making squashes, or in both as discussed by Fischberg and Beatty2 and Venge3.
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References
Sachs, L., Nature, 172, 205 (1953).
Fischberg, M., and Beatty, R. A., J. Exp. Zpol., 118, 321 (1951).
Venge, O., Ann. Roy. Agric. Coll., Sweden, 19, 233 (1953).
Manna, C. K., Nature, 183, 271 (1954).
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VENGE, O. A Simplified Method for spreading the Chromosomes in the Rabbit Blastocyst. Nature 174, 608 (1954). https://doi.org/10.1038/174608a0
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DOI: https://doi.org/10.1038/174608a0
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