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1. In the fruit fly, Drosophila melanogaster, the gene for eye colour is sex linked. The allele for the red eye is dominant to the allele for white eye. In an experiment, a red-eyed female was crossed with a white-eyed male. Two fruit flies of the F1 generation were then crossed. The following F2 phenotypes were produced: red- eyed females red-eyed males white-eyed males 95 49 56

1. In the fruit fly, Drosophila melanogaster, the gene for eye colour is sex linked. The allele for the red eye is dominant to the allele for white eye. In an experiment, a red-eyed female was crossed with a white-eyed male. Two fruit flies of the F1 generation were then crossed. The following F2 phenotypes were produced: red- eyed females red-eyed males white-eyed males 95 49 56

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Answer ALL questions in the foolscap paper sheets. 1. In the fruit fly, Drosophila melanogaster, the gene for eye colour is sex linked. The allele for the red eve is dominant to the allele for white eye. In an experiment, a red-eyed female was crossed with a white-eyed male. Two fruit flies of the F1 generation were then crossed. The following F2 phenotypes were produced: red- eyed females red-eyed males white-eyed males 95 49 56 By using suitable symbols, draw a genetic cross diagram to explain the results.
Transcribed Image Text:Answer ALL questions in the foolscap paper sheets. 1. In the fruit fly, Drosophila melanogaster, the gene for eye colour is sex linked. The allele for the red eve is dominant to the allele for white eye. In an experiment, a red-eyed female was crossed with a white-eyed male. Two fruit flies of the F1 generation were then crossed. The following F2 phenotypes were produced: red- eyed females red-eyed males white-eyed males 95 49 56 By using suitable symbols, draw a genetic cross diagram to explain the results.
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