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homozygous polled
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<blockquote data-quote="Anonymous" data-source="post: 6011"><p>males have the XY sexgene and the X gene is the only one that can carry the 'scurr free' gene. u can not have a heterozygous scurred bull, it must be a sufferer or a unscurred bull. but there is always a chance the FEMALE could be heterozygous, that is XS Xs. so if crossed with a Xs bull (it seems scurs is recessive), there is a 50% chance of scurred male because male progeny recieve their X chromasome from their mother. there is also a 50% chance of a scurred female.</p><p></p><p> <a href="mailto:perminant_high@hotmail.com">perminant_high@hotmail.com</a></p></blockquote><p></p>
[QUOTE="Anonymous, post: 6011"] males have the XY sexgene and the X gene is the only one that can carry the 'scurr free' gene. u can not have a heterozygous scurred bull, it must be a sufferer or a unscurred bull. but there is always a chance the FEMALE could be heterozygous, that is XS Xs. so if crossed with a Xs bull (it seems scurs is recessive), there is a 50% chance of scurred male because male progeny recieve their X chromasome from their mother. there is also a 50% chance of a scurred female. [email=perminant_high@hotmail.com]perminant_high@hotmail.com[/email] [/QUOTE]
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