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.
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...
Related questions
Topic Video
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Recommended textbooks for you
Biology (MindTap Course List)
Biology
ISBN:
9781337392938
Author:
Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:
Cengage Learning
Human Heredity: Principles and Issues (MindTap Co…
Biology
ISBN:
9781305251052
Author:
Michael Cummings
Publisher:
Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:
9781337392938
Author:
Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:
Cengage Learning
Human Heredity: Principles and Issues (MindTap Co…
Biology
ISBN:
9781305251052
Author:
Michael Cummings
Publisher:
Cengage Learning