Determination of Sex in Granulopoietic Cells of Mice and Rats


WHILE examining Feulgen-stained sections of rat bone-marrow, it was observed that certain gramilocyte precursors showed a body strongly resembling the sex chromatin described in other species1 in that it occurred with much greater frequency in female than in male marrows.

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BERENBAUM, M. Determination of Sex in Granulopoietic Cells of Mice and Rats. Nature 188, 603–604 (1960).

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