Questions 9-15 are related. The dorsophila alleles for purpleeyes (instead of red) and dumpy wings (instead of normal) are bothrecessive. Gene "E" designates eye color (E: dominant, e:recessive), and gene "D" designates wing shape (D: dominant, d:recessive). You cross a pure breeding purple eyed, nomral wingedfly to a true breeding red eyed, dumpy winged fly.
9.) What are the genotypes of the parental flies
10.) What would you expect the offspring(F1) phenotypes tobe?
11.) You cross these F1 offsprings to flies that are purebreeding for purple eyes and dumpy wings. You get 200 offspring. 45are purple eyed and dumpy winged, 43 are red eyed and normalwinged, 63 are purple eyed and normal winged, and 49 are red eyedand dumpy winged. you think that these two genes could be ondifferent chromosomes but your firnd tells you that he thinks theyare linked and that htye are close enough to each other to have afrequency of recombinants of 0.38. If you are corrct and they areon different chromosomes, how much purple yeed, normal winged flieswould you ideally expect out of your 200 offspring? (Your answershould be a whole number.)
12.) If your firnd is correct and the genes are lined withfrequency of recombinatns of 0.38 how many purple eyed, normalwiged flies would you expect?
13,) Calcualte the chi squared value if the genes are ondifferent chromosmes.
14.) Calcualte the chi squared value if your friend iscorrect.
15,) who is more likely to be correct? I am? or my Firendis?
Questions 9-15 are related. The dorsophila alleles for purpleeyes (instead of red) and dumpy wings (instead of normal) are bothrecessive. Gene "E" designates eye color (E: dominant, e:recessive), and gene "D" designates wing shape (D: dominant, d:recessive). You cross a pure breeding purple eyed, nomral wingedfly to a true breeding red eyed, dumpy winged fly.
9.) What are the genotypes of the parental flies
10.) What would you expect the offspring(F1) phenotypes tobe?
11.) You cross these F1 offsprings to flies that are purebreeding for purple eyes and dumpy wings. You get 200 offspring. 45are purple eyed and dumpy winged, 43 are red eyed and normalwinged, 63 are purple eyed and normal winged, and 49 are red eyedand dumpy winged. you think that these two genes could be ondifferent chromosomes but your firnd tells you that he thinks theyare linked and that htye are close enough to each other to have afrequency of recombinants of 0.38. If you are corrct and they areon different chromosomes, how much purple yeed, normal winged flieswould you ideally expect out of your 200 offspring? (Your answershould be a whole number.)
12.) If your firnd is correct and the genes are lined withfrequency of recombinatns of 0.38 how many purple eyed, normalwiged flies would you expect?
13,) Calcualte the chi squared value if the genes are ondifferent chromosmes.
14.) Calcualte the chi squared value if your friend iscorrect.
15,) who is more likely to be correct? I am? or my Firendis?
