An animal breeder practiced full-sib mating through artificial insemination of a reddish skin (AaBb) gilt. Among the 16 offsprings, 9 have reddish skin, 6 have sandy skin, and 1 has white skin. а. Нурothesis b. Calculate the expected values and chi-square value of the four phenotypes based on the hypothesis (Show your solutions) Expected Frequency (D = O-E) (E) Observed Deviation Phenotypic Class D2 X2=D2 / E Frequency (0) 2 3 n = X2com= c. Conclusions:

An animal breeder practiced full-sib mating through artificial insemination of a reddish skin (AaBb) gilt. Among the 16 offsprings, 9 have reddish skin, 6 have sandy skin, and 1 has white skin. а. Нурothesis b. Calculate the expected values and chi-square value of the four phenotypes based on the hypothesis (Show your solutions) Expected Frequency (D = O-E) (E) Observed Deviation Phenotypic Class D2 X2=D2 / E Frequency (0) 2 3 n = X2com= c. Conclusions:

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

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In rabbits, the gene for fur color is multiallelic. Agouti (C) is dominant to chinchilla (Cch), chinchillas is dominant to himalaya (Ch), and himalaya is dominant to albino (c). Determine the genotypes of each corresponding phenotypes. Please show the solution.
Based on the information you discovered in the previous problem, answer the following:a. A female fruit fly with genotype Tt nn is mated toa male of genotype Tt Nn. What is the probabilitythat any one of their offspring will have normalphenotypes for both characters?b. What phenotypes would you expect among the offspring of this cross? If you obtained 200 progeny, howmany of each phenotypic class would you expect?
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. For several years, Hans Nachtsheim investigated an inherited anomaly of the white blood cells of rabbits. Thisanomaly, termed the Pelger anomaly, is the arrest ofthe segmentation of the nuclei of certain white cells. Thisanomaly does not appear to seriously burden the rabbits.a. When rabbits showing the Pelger anomaly were matedwith rabbits from a true-breeding normal stock,Nachtsheim counted 217 offspring showing the Pelgeranomaly and 237 normal progeny. What is the geneticbasis of the Pelger anomaly?b. When rabbits with the Pelger anomaly were matedwith each other, Nachtsheim found 223 normal progeny,439 with the Pelger anomaly, and 39 extremely abnormalprogeny. These very abnormal progeny not only haddefective white blood cells, but also showed severedeformities of the skeletal system; almost all of themdied soon after birth. In genetic terms, what do yousuppose these extremely defective rabbits represented?Why were there only 39 of them?c. What additional experimental evidence…
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