Summary
The progression of the prophase stages of meiosis in human foetal ovaries is reported from a series of aborted foetuses spanning the first two trimesters of gestation. A surface-spreading technique allowed cells to be examined at both light and electron microscope levels. The pachytene stage was specifically examined for evidence of synaptic or other abnormalities. Two observations of interest are the relatively high incidence with which errors of pairing occur and second the state of thickening observed when such unpaired axes are stained with silver.
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Speed, R.M. The prophase stages in human foetal oocytes studied by light and electron microscopy. Hum Genet 69, 69–75 (1985). https://doi.org/10.1007/BF00295532
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DOI: https://doi.org/10.1007/BF00295532