Three linked loci are evaluated to determine the recombination frequency of the loci. To set up the test cross, an individual that is true breeding dominant for all three phenotypes is crossed with an individual that is true breeding recessive for all three phenotypes. F1 offspring are crossed with individuals that are recessive for all phenotypes. The phenotypic results are shown in the table below. Phenotype Number of Offspring Dominant 1, Dominant 2, Dominant 3 322 Dominant 1, Dominant 2, Recessive 3 82 Recessive 1, Dominant 2, Recessive 3 5 Dominant 1, Recessive 2, Dominant 3 2 Recessive 1, Dominant 2, Dominant 3 28 Recessive 1, Recessive 2, Dominant 3 89 Recessive 1, Recessive 2, Recessive 3 312 Dominant 1, Recessive 2, Recessive 3 25 1. Which two phenotypes are parental? 2. What is the map distance between locus 1 and locus 2? 3. What is the map distance between locus 1 and locus 3? 4. What is the map distance between locus 2 and locus 3? 5. Sketch a chromosome that maps the three loci based on your map distance calculations.
Three linked loci are evaluated to determine the recombination frequency of the loci. To set up the test cross, an individual that is true breeding dominant for all three phenotypes is crossed with an individual that is true breeding recessive for all three phenotypes. F1 offspring are crossed with individuals that are recessive for all phenotypes. The phenotypic results are shown in the table below. Phenotype Number of Offspring Dominant 1, Dominant 2, Dominant 3 322 Dominant 1, Dominant 2, Recessive 3 82 Recessive 1, Dominant 2, Recessive 3 5 Dominant 1, Recessive 2, Dominant 3 2 Recessive 1, Dominant 2, Dominant 3 28 Recessive 1, Recessive 2, Dominant 3 89 Recessive 1, Recessive 2, Recessive 3 312 Dominant 1, Recessive 2, Recessive 3 25 1. Which two phenotypes are parental? 2. What is the map distance between locus 1 and locus 2? 3. What is the map distance between locus 1 and locus 3? 4. What is the map distance between locus 2 and locus 3? 5. Sketch a chromosome that maps the three loci based on your map distance calculations.
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
- Three linked loci are evaluated to determine the recombination frequency of the loci. To set up the test cross, an individual that is true breeding dominant for all three
phenotypes is crossed with an individual that is true breeding recessive for all three phenotypes. F1 offspring are crossed with individuals that are recessive for all phenotypes. The phenotypic results are shown in the table below.
|
Phenotype |
Number of Offspring |
|
Dominant 1, Dominant 2, Dominant 3 |
322 |
|
Dominant 1, Dominant 2, Recessive 3 |
82 |
|
Recessive 1, Dominant 2, Recessive 3 |
5 |
|
Dominant 1, Recessive 2, Dominant 3 |
2 |
|
Recessive 1, Dominant 2, Dominant 3 |
28 |
|
Recessive 1, Recessive 2, Dominant 3 |
89 |
|
Recessive 1, Recessive 2, Recessive 3 |
312 |
|
Dominant 1, Recessive 2, Recessive 3 |
25 |
1. Which two phenotypes are parental?
2. What is the map distance between locus 1 and locus 2?
3. What is the map distance between locus 1 and locus 3?
4. What is the map distance between locus 2 and locus 3?
5. Sketch a chromosome that maps the three loci based on your map distance calculations.
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 with 1 images
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
Biology (MindTap Course List)
Biology
ISBN:
9781337392938
Author:
Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:
Cengage Learning