Article
Sex chromosome chimerism and the freemartin syndrome in Rideau Arcott sheep.
Cytogenetic and genome research - 1 Jan 2008
Brace M D, Peters O, Menzies P, King W A, Nino-Soto M I
Abstract excerpt
In cattle, nearly all heifers born co-twin to a male are freemartins, XX/XY chimeras that exhibit a characteristic masculinized phenotype. However, in sheep, while litters containing males and females are common, freemartins are relatively rare. The primary aim of this study was to determine the frequency and features of XX/XY chimerism in female Rideau Arcott sheep. Also, breeding records were used to...
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