The F1 from a cross of AABB x aabb is testcrossed, resulting in the following phenotypic ratios: AB 308 Ab 190 ab 292 aB 210 (1) what are the genotypes for the listed phenotypes? (2) why aren't the phenotypes in a 1:1:1:1 ratio? (3) what is the frequency of recombination between genes A and B?

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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The F1 from a cross of AABB x aabb is testcrossed, resulting in the following phenotypic ratios:

AB 308

Ab 190

ab 292

aB 210

(1) what are the genotypes for the listed phenotypes?

(2) why aren't the phenotypes in a 1:1:1:1 ratio?

(3) what is the frequency of recombination between genes A and B?

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