Data Page
Data Page
Prelab Questions (read main page)
1. Why are fruit flies a good subject for genetic studies?
2. Describe the life cycle of Drosophila melanogaster
3. What tools would you need to study fruit flies in the lab?
4. Show the abbreviations that would be used to denote a fly with dumpy (dp) wings and a wild type fly that is carrying the allele for dumpy wings. The allele is not located on the sex chromosome.
Sexing Fruit Flies
1. Describe the differences between male fruit flies and female fruit flies.
2. How many male fruit flies were present in the simulation? ______ How many females? ______
Cross 1: Wild Type Female x Vestigial Winged Male
| F1 Generation | F2 Generation | |
| Wild Type Males |  |
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| Vestigial Winged Males | |
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| Wild Type Females | |
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| Vestigial Winged Females | |
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Hypothesis: What is the genotype of the parents and how is vestigial wings inherited (autosomal or sex linked)
Chi Square Analysis
Cross 2: White Eyed Female x Wild Type Male
| F1 Generation | F2 Generation | |
| Wild Type Males | |
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| White eyed Males | |
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| Wild Type Females | |
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| White Eyed Females | |
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Hypothesis: What is the genotype of the parents and how is eye color inherited (autosomal or sex linked)
Chi Square Analysis
Cross 4: Wild Type Female x Sepia Eyed, Vestigial Winged Male
| F1 Generation | F2 Generation | |
| Wild Type Males | |
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| Wild Type Female | |
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| Vestigial Winged Males (normal antenna) | |
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| Vestigial Winged Females (normal antenna) | |
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| Aristapedia Males (normal wings) | |
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| Aristapedia Females (normal wings) | |
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| Vestigial Wings, Aristapedia Males | |
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| Vestigial Wings, Aristapedia Females | |
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Hypothesis: What is the genotype of the parents and how is aristapedia and vestigial wings inherited (autosomal or sex linked)
Chi Square Analysis