Two pure-breeding strains of mice are crossed to produce F1 mice that are heterozygous for three linked genes with alleles Aa, Bb, and Dd. Numerous triply heterozygous F1 mice are testcrossed, and the genotypes and numbers of the resulting progeny are as follows: A A- A- A- aa aa aa Total B- D- B- dd bb D- bb dd B- D- B- dd bb D- 10 350 100 40 60 120 320 1000 1.Which gene is in the middle? 2.Specify the genotype of the F1 triple heterozygote as completely as possible, with the genes in the correct order and the correct alleles on each chromosome. 3. Which two genes are closest together? 4.What is the map distance between the two closest genes? Assume that interference is complete between these two genes. 5.If interference is not complete, how will the true map distance differ from the value you calculated in part (d)? Briefly explain why this is so.

Two pure-breeding strains of mice are crossed to produce F1 mice that are heterozygous for three linked genes with alleles Aa, Bb, and Dd. Numerous triply heterozygous F1 mice are testcrossed, and the genotypes and numbers of the resulting progeny are as follows: A A- A- A- aa aa aa Total B- D- B- dd bb D- bb dd B- D- B- dd bb D- 10 350 100 40 60 120 320 1000 1.Which gene is in the middle? 2.Specify the genotype of the F1 triple heterozygote as completely as possible, with the genes in the correct order and the correct alleles on each chromosome. 3. Which two genes are closest together? 4.What is the map distance between the two closest genes? Assume that interference is complete between these two genes. 5.If interference is not complete, how will the true map distance differ from the value you calculated in part (d)? Briefly explain why this is so.

Name: Two pure-breeding strains of mice are crossed to produce F1 mice that
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Description: Two pure-breeding strains of mice are crossed to produce F1 mice thatare heterozygous for three linked genes with alleles Aa, Bb, and Dd.Numerous triply heterozygous F1 mice are testcrossed, and thegenotypes and numbers of the resulting progeny are

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...

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