23 In Drosophila White Eye W And Yellow Body Y Are Recessive Genes With The Dominant Alleles Red Eye W And Brow 1 (55.71 KiB) Viewed 45 times
23 In Drosophila White Eye W And Yellow Body Y Are Recessive Genes With The Dominant Alleles Red Eye W And Brow 2 (55.71 KiB) Viewed 45 times
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23 In Drosophila White Eye W And Yellow Body Y Are Recessive Genes With The Dominant Alleles Red Eye W And Brow 3 (55.71 KiB) Viewed 45 times
23 In Drosophila White Eye W And Yellow Body Y Are Recessive Genes With The Dominant Alleles Red Eye W And Brow 4 (55.71 KiB) Viewed 45 times
23. In Drosophila, white-eye (w) and yellow body (y) are recessive genes, with the dominant alleles red-eye (w) and brown body (y) respectively. If homozygous white-eyed, yellow-bodied females are crossed to red- eyed, brown-bodied hemizygous males, the resulting F1 progeny are red-eyed, brown-bodied females and white-eyed, yellow-bodied males. If the F1 females are crossed to the F1 males, the following 1,000 MALE progeny are obtained. white-eyed & brown-bodied red-eyed & yellow-bodied red-eyed & brown-bodies (i.e. wild-type) white-eyed & yellow-bodied a) Why do we only analyze the males in this F2 population? (1 points) b) Derive a map for these two (2) genes. (3 points) 100 24. In Drosophila, shaker (sh), bent (b) and twirled (1) are three recessive genes. If homozygous shaker, bent females are crossed with homozygous twirled males, the resulting F1 progeny are all wild-type. If heterozygous F1 females are mated with shaker, bent, and twirled males, the following 1,000 progeny appear: 371 Derive a map for the three (3) genes. (8 pt) shaker, bent twirled shaker, twirled bent 40 60 460 440 wild-type shaker, bent, twirled shaker bent, twirledi 70 75 45 38 5 11 385
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