purple snow pea plant known to be hybrid for three linked genes (a, b, and d) is testcrossed. The progeny phenotypes and frequencies are: +a+ 86 b+d 56 +ad 78 b++ 49 +++ 12 bad 6 ba+ 515 ++d 460   a) Draw the chromosomes of the trihybrid and tester lined mentioned above.  b) Give a map of the gene order with distance.

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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A purple snow pea plant known to be hybrid for three linked genes (a, b, and d) is testcrossed. The progeny phenotypes and frequencies are:

+a+ 86

b+d 56

+ad 78

b++ 49

+++ 12

bad 6

ba+ 515

++d 460

 

a) Draw the chromosomes of the trihybrid and tester lined mentioned above. 

b) Give a map of the gene order with distance. 

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