samplefirqu - ANS 3384 OLD FIRST QUIZ QUESTIONS Give the...

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ANS 3384 –OLD FIRST QUIZ QUESTIONS Give the expected progeny phenotypic ratios from the mating of Brown Swiss X Angus crossbred cows (genotype-E d E + Brbr + ) to a Hereford bull (genotype-ee Brbr + ). Give the expected progeny phenotypic ratios from the mating of Charolais X Angus cows (dilute black and nonspotted) to a Pinzgauer X Hereford (red with a white face and the Pinzgauer stripe) shows crossbred bull. (Remember that the Charolais breed is genetically ee). It is 1970. The first Simmental cattle have just been imported from Europe and semen is available (from horned bulls). Indicate how you would go about developing polled Simmental cattle through an upgrading program from Angus. Once you have such polled Simmental, what would the first step be to try to produce homozygous polled Simmental cattle. Indicate how you would go about developing black Simmental cattle through an upgrading program from Angus. Remember that Angus are black (E d ) and that the original imported Simmental were all red (ee). 1. a. Explain why we might want to incorporate the dominant gene for short hair, Slick (Sk), into Holstein cattle. b. Explain how this gene could be incorporated into Holsteins through an upgrading
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samplefirqu - ANS 3384 OLD FIRST QUIZ QUESTIONS Give the...

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