What offspring will you get when you cross AaBb x aabb if the O AaBb two genes a

Question

What offspring will you get when you cross AaBb x aabb if the O AaBb two genes are on separate chromosomes? 1/2 AaBb, 1/2 aabb 1/4 Aabb, 1/4 AaBb, 1/4 aaBb, 1/4 aablb aabb QUESTION 4 What offspring "could* you get when you cross AaBbxaabb if there is very tight linkage between the two genes so that there is no recombination between them? (choose all that apply) 1/2AaBb, 1/2aabb 1/2Aabb, 1/2aaBb 9AB_:3 A bb :3 aaB_ :1 aabb 1/4 Aabb, 1/4 AaBb, 1/4 aaBb, 1/4 aabb QUESTION 5 Let's say that you crossed AABB x aabb to get AaBb F1s. If the two genes are linked, we can rewrite the parental genotypes to represent the alleles' locations on the two homologous chromosomes. How could we rewrite the parent genotypes? (choose all that apply) AA/BB and aa/bb aa/BB and AA/bb O AB/AB and ab/ab AB/ab QUESTION 6 How could we rewrite the AaBb F1 genotype from the above cross? (choose all that apply) AA/BB and aa/bb aa/BB and AA/bb AB/AB and ab/ab Ab/aB AB/ab

Explanation / Answer

3- 1/4AaBb , 1/4Aabb,1/4aaBb ,1/4aabb

4-1/2AaBb,1/2aabb

5-AB/AB , ab/ab

6-AB/ab

Note - in linked gene no crossing over take place and no recombinanat are formed the gene are so closed that they donot assort independently .

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