Drosophila melanogaster (fruit fly) Simulation
Objective:
 Analyze the inheritance patterns of Drosophila melanogaster (fruit fly)
Notes

Wild type flies are homozygous (pure)
Assignment
Part I
1. Summarize the procedure beginning with purchasing flies to analyzing data.
2. What is the expected outcome if two wild type flies are mated? (ignore sex)
a. Sketch the Punnett Square
b. Summarize data
3. What is the expected outcome if a female wild type is mated with a male with white
eyes? (ignore sex)
a. Sketch Punnett Square
b. Summarize data
c. Which trait is dominant?
4. Use the offspring from #3 in a new mating. (ignore sex)
a. Sketch the Punnett Square
b. Summarize the data
c. Using the correct genetics vocabulary, describe the parents from this mating.
5. What are the results when a female wild type is mated with a male with dichaete
wing angle? (ignore sex)
a. Summarize the results
b. Sketch the Punnett Square
c. Which trait is dominant? Explain.
Part II
Analyze the inheritance patterns of five different traits that you did not use in Part I and complete the table below. Use the
example to guide you. Sketch Punnett Squares to support your conclusions.
Trial
Trait
tested
Female
Male
Results
Conclusion
ex.
wing
shape
wild
curved
100%
wild
Wild type wing shape is the dominant gene over
curved wing shape (see Punnett Square below)
1
2
3
4
5
ex. GG (wild type wing shape) X gg (curved wing shape)
G
G
g
Gg
Gg
g
Gg
Gg
100% offspring are hybrid for wild type wing shape