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Understanding Mendelian analysis and heredity.

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Holstein cattle are normally black and white. A superb black and white bull, Nick, was purchased by a farmer for $100 000. The progeny sired by Nick were all normal in appearance. However, certain pairs of his progeny, when interbred, produced red and white progeny at a frequency of about 25 percent. Nick was soon removed from the stud lists of the Holstein breeders. Explain why, using symbols.

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The mendelian analysis and heredity is examined. The progeny sired by Nick were all normal in appearance is analyzed.

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Nick was not a pure-bred Holstein, but was in fact heterozygous, Bb, where b ...

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