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Meiosis in Sxr male mice

I. Does A Y-autosome rearrangement exist in sex-reversed (Sxr) mice?

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Cytological evidence for the existence of a Y-autosomal rearrangement in meiotic cells of Sxr mice has been sought. At pachytene, in silverstained light microscope spread preparations of XY, Sxr/+ and XO, Sxr/+ spermatocytes, evidence for pairing or association between a possible Y-bearing segment of a specific autosome and a sex chromosome could not, however, be found. Such sex chromosome-autosome associations as were seen were non-specific in nature, and occurred no more often in Sxr mice than in controls.

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Chandley, A.C., Fletcher, J.M. Meiosis in Sxr male mice. Chromosoma 81, 9–17 (1980). https://doi.org/10.1007/BF00292419

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  • Light Microscope
  • Developmental Biology
  • Male Mouse
  • Meiotic Cell
  • Cytological Evidence