Oct 29 Disc_Section (practice problems)

Oct 29 Disc_Section (practice problems) - Pre-Exam...

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Pre-Exam Discussion Section
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beginning herd of 12 cows all of which produce high quantities of milk (M, dominant over low quantities) and have high fertility (F, also dominant over low fertility). However, she knows that all of her cows are heterozygous for both these traits and that the genes are linked. In her cows, one homolog of the pair contains the dominant alleles for each trait and one contains the recessive allele of each of the traits. Two of the farmer's nearby neighbors own bulls that are also heterozygous for these traits. The first neighbor's bull has the same alleles linked as her cows but the second neighbor's bull has one dominant and one recessive allele from each trait on each homolog. A. Bearing in mind that the farmer would like to obtain the maximum number of calves with high milk production and high fertility, which of the two available bulls should she choose to introduce her cows to? B. What percentage of the offspring resulting from the above match will have the most desirable phenotype of high milk production and high fertility? C. What percentage of the offspring resulting from the above match will
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Oct 29 Disc_Section (practice problems) - Pre-Exam...

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