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Free Response: Fruit Flies Genetics To do well on the question, you will need to use the proper terminology and cover each point in the question in-depth. Be sure to define important terms and provide real world examples of how the concept relates to living organisms. In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild type fruit fly and a female white eyed fruit fly produced the following offspring, Wild-type Male Wild-type Female 45 Wild-type Male F2 23 White-eyed Male 55 Wild-type Female 31 F1 The wild type and white eyed individuals from the F1 generation were then crossed to produce the following offspring. White-eyed Female 0 White-eyed Male 22 Brown-eyed Female 1 White-eyed Female 24 Brown-eyed Female 0 1. Determine the genotypes of the original parents (P generation) and explain your reasoning. You may use Punnett squares to enhance your description, but the results from the Punnett squares must be discussed in your answer. 2. Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Show all your work and explain the importance of your final answer. 3. The brown eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is and discuss two types of mutations that might have produced the brown eyed female in the F1 generation.

Free Response: Fruit Flies Genetics To do well on the question, you will need to use the proper terminology and cover each point in the question in-depth. Be sure to define important terms and provide real world examples of how the concept relates to living organisms. In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild type fruit fly and a female white eyed fruit fly produced the following offspring, Wild-type Male Wild-type Female 45 Wild-type Male F2 23 White-eyed Male 55 Wild-type Female 31 F1 The wild type and white eyed individuals from the F1 generation were then crossed to produce the following offspring. White-eyed Female 0 White-eyed Male 22 Brown-eyed Female 1 White-eyed Female 24 Brown-eyed Female 0 1. Determine the genotypes of the original parents (P generation) and explain your reasoning. You may use Punnett squares to enhance your description, but the results from the Punnett squares must be discussed in your answer. 2. Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Show all your work and explain the importance of your final answer. 3. The brown eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is and discuss two types of mutations that might have produced the brown eyed female in the F1 generation.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Free Response: Fruit Flies Genetics To do well on the question, you will need to use the proper terminology and cover each point in the question in-depth. Be sure to define important terms and provide real world examples of how the concept relates to living organisms. In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild type fruit fly and a female white eyed fruit fly produced the following offspring. Wild-type Wild-type White-eyed White-eyed Brown-eyed Male Female Male Female Female F1 45 55 1 The wild type and white eyed individuals from the F1 generation were then crossed to produce the following offspring. Wild-type White-eyed Wild-type Female White-eyed Female Brown-eyed Male Male Female F2 23 31 22 24 1. Determine the genotypes of the original parents (P generation) and explain your reasoning. You may use Punnett squares to enhance your description, but the results from the Punnett squares must be discussed in your answer. 2. Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Show all your work and explain the importance of your final answer. 3. The brown eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is and discuss two types of mutations that might have produced the brown eyed female in the F1 generation. Read the question above and create a document in which you develop responses to the question. Evaluate your essay by using the rubric provided. Critical Values of the Chi-Squared Distribution Probability (p) Degrees of Freedom (df) 1 2 3 4 5 0.05 3.84 5.99 7.82 9.49 11.1 The formula for Chi-squared is X2 = E0-e2 Where o = observed number of individuals e = expected number of individuals 2= the sum of the values Rubric Requirement Points Possible Points Awarded Genotypes of the parents Explain Punnett square for F1 & F2 15 15 F2 prediction 10 Chi Square Analysis Explanation of final answer 30 10 Mutation explained Explains two types of mutations Total 10 10 10
Transcribed Image Text:Free Response: Fruit Flies Genetics To do well on the question, you will need to use the proper terminology and cover each point in the question in-depth. Be sure to define important terms and provide real world examples of how the concept relates to living organisms. In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild type fruit fly and a female white eyed fruit fly produced the following offspring. Wild-type Wild-type White-eyed White-eyed Brown-eyed Male Female Male Female Female F1 45 55 1 The wild type and white eyed individuals from the F1 generation were then crossed to produce the following offspring. Wild-type White-eyed Wild-type Female White-eyed Female Brown-eyed Male Male Female F2 23 31 22 24 1. Determine the genotypes of the original parents (P generation) and explain your reasoning. You may use Punnett squares to enhance your description, but the results from the Punnett squares must be discussed in your answer. 2. Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Show all your work and explain the importance of your final answer. 3. The brown eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is and discuss two types of mutations that might have produced the brown eyed female in the F1 generation. Read the question above and create a document in which you develop responses to the question. Evaluate your essay by using the rubric provided. Critical Values of the Chi-Squared Distribution Probability (p) Degrees of Freedom (df) 1 2 3 4 5 0.05 3.84 5.99 7.82 9.49 11.1 The formula for Chi-squared is X2 = E0-e2 Where o = observed number of individuals e = expected number of individuals 2= the sum of the values Rubric Requirement Points Possible Points Awarded Genotypes of the parents Explain Punnett square for F1 & F2 15 15 F2 prediction 10 Chi Square Analysis Explanation of final answer 30 10 Mutation explained Explains two types of mutations Total 10 10 10
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