Question

Q.2. You cross two true-breeding flies. The female parent is brown and wingless and the male parent is black with normal wings. All of the flies in the F1 generation are brown and have normal wings (Indicate the color alleles as “B” and “b” the wing alleles by the letters “N” and “n”). F1 offsprings were than testcrossed, which resulted in following flies in F2 generation
85 brown winged flies
728 black winged flies
712 brown wingless flies
75 black wingless flies
Determine the recombination frequency and distance between two genes.​

Answer 1

Answer:

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the “P” generation, you cross two true-breeding flies. The female parent is brown and wingless and the male parent is black with normal wings. All of the flies in the F1 generation are brown and have normal wings. ... a) The genotypes of the flies in the P generation are: BBnn female and bbNN male.