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<blockquote data-quote="txag" data-source="post: 33140" data-attributes="member: 8"><p>here's an interesting article on genetics & inheritance</p><p></p><p><a href="http://www.animal.ufl.edu/ans3384/Qualitative%20traits.htm" target="_blank">http://www.animal.ufl.edu/ans3384/Qualitative traits.htm</a></p><p></p><p>to highlight some interesting points in the article to follow Vicky & Genie's points:</p><p></p><p>"The desirable aspect of the red coloration, from a genetic standpoint, is that, as a recessive, it will always "breed true." The only exception would be the segregation of very light red or cream-colored animals from some light red parents."</p><p></p><p>here's the bull Vicky was referring to:</p><p></p><p>"Angus are homozygous or nearly so for the P gene. The p+ (horned) gene appears to mutate to P at a fairly high frequency, as indicated by the periodic production of polled animals from horned parents. One recent example was the polled Simmental bull, Polaris, whose parents were both horned, fullblood Simmental. The polled mutant has also occurred in Herefords, resulting in the Polled Hereford breed, and in the Shorthorn, Holstein, and Brahman breeds. The polled gene also has been incorporated into breeds by selecting for it in successive generations of upgrading programs to horned breeds where polled cows were used as foundation dams."</p><p></p><p></p><p>"It is because of such overlap of phenogroups from one breed to another that it may be difficult to document clearly the introduction of another breed unless the reported parents and perhaps grandparents of the animal with an unusual phenogroup combination can be examined."</p></blockquote><p></p>
[QUOTE="txag, post: 33140, member: 8"] here's an interesting article on genetics & inheritance [url]http://www.animal.ufl.edu/ans3384/Qualitative%20traits.htm[/url] to highlight some interesting points in the article to follow Vicky & Genie's points: "The desirable aspect of the red coloration, from a genetic standpoint, is that, as a recessive, it will always "breed true." The only exception would be the segregation of very light red or cream-colored animals from some light red parents." here's the bull Vicky was referring to: "Angus are homozygous or nearly so for the P gene. The p+ (horned) gene appears to mutate to P at a fairly high frequency, as indicated by the periodic production of polled animals from horned parents. One recent example was the polled Simmental bull, Polaris, whose parents were both horned, fullblood Simmental. The polled mutant has also occurred in Herefords, resulting in the Polled Hereford breed, and in the Shorthorn, Holstein, and Brahman breeds. The polled gene also has been incorporated into breeds by selecting for it in successive generations of upgrading programs to horned breeds where polled cows were used as foundation dams." "It is because of such overlap of phenogroups from one breed to another that it may be difficult to document clearly the introduction of another breed unless the reported parents and perhaps grandparents of the animal with an unusual phenogroup combination can be examined." [/QUOTE]
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