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The aim of this study was to show different methods for the recognition of abnormalities in the determination of fenotypical, gonadal and chromosomal sex such as hermaphroditism in dogs. The subject of examination was a 9-month-old Yorkshire terrier with clinical signs of hermaphroditism. Clinical examination led to a definition of fenotypical sex and coexisting dysgenesis (perineal hypospadias)....
The aim of this study was to analyze the reasons for abnormal meiosis in an infertile boar, the carrier of a reciprocal translocation, rcp(9;14)(q14;q23). The study was based on observations of synaptonemal complexes, the protein structures occurring during pairing of chromosomes. The specific morphology of the X-Y bivalent at different stages of pairing made it possible to identify several substages...
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