In Drosophila, brown body is wild type plus dominant to yellow body, and normal wings is wild type plus dominant to vestigial wings. A cross was made between a yellow-bodied male with vestigial wings and a wild-type female. The F1 generation consisted of wild-type males and wild-type females. a. Define allele symbols for both genes for the moment, assuming that both genes are autosomal. b. Assuming both genes are autosomal, what is the genotype of the parents and the F1 generations. The F1 males and females were crossed and the F2 progeny consisted of: 16 yellow-bodied males with vestigial wings ,48 yellow-bodied males with normal wings, 15 brown-bodied males with vestigial wings, 49 wild type males ,31 brown-bodied females with vestigial wings, 97 wild-type females c. Given this data, determine if body color is autosomal or sex-linked. Support your answer. d. Given this data, determine if wing shape is autosomal or sex-linked. Support your answer. e. Redefine your allele symbols to reflect sex-linkage if necessary and determine the following: Genotype of the female parent: Genotype of the male parent: Genotype of the female F1 Genotype of the male F1f.Genotypic class of each of the different phenotypes found in the F2: Show work on extra pages if needed yellow-bodied males with vestigial wings yellow-bodied males with normal wings brown-bodied males with vestigial wings wild type males wild-type females
Vestigial wings and wild-type female
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