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An organism of genotype AaBb is testcrossed. 1000 offspring are counted and the numbers in the four genotypic categories are as follows:

AaBb 450
Aabb 42
aaBb 38
aabb 470

1.What can you say about these genes and what is the distance in map unit between 2 genes?

2.Rf between 2 genes is 0.5. What are 2 likely locations of these genes?

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