Use of the silver-NOR method to study the nucleolar organizers in human oocytes demonstrates that topographic and quantitative variations occur during meiotic prophase. In the oogonia nucleolus the nucleolar organizers are dispersed, whereas beginning at leptotene and throughout the remaining stages
The prophase stages in human foetal oocytes studied by light and electron microscopy
β Scribed by R. M. Speed
- Publisher
- Springer
- Year
- 1985
- Tongue
- English
- Weight
- 787 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0340-6717
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β¦ Synopsis
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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