Reference no: EM132699541
Fly Lab Questions
1. What is a phenotype?
2. What is a genotype?
3. What are autosomes? How would you symbolize the genotype of an individual who is heterozygous for an autosomal trait? How about an individual who is homozygous recessive?
4. What are the sex chromosomes? How would you symbolize the genotype of a male who has a recessive trait on the X chromosome? How about a female who carries the recessive trait but does not exhibit the recessive phenotype?
5. Using this web site https://www.biologycorner.com/fruitflygenetics/flash1.html mate a wild type female and a vestigial winged male. These traits are autosomal. What are the phenotypes of the F1 generation?
6. Based on the F1 results, which trait is dominant and which is recessive?
7. What is the genotype of the male parent?
8. What is the genotype of the female parent?
9. Construct a punnet square to show this mating and the resulting F1 offspring.
10. Now mate your F1 generation. What are the phenotypes of the F2 generation?
11. What are the genotypes of each parent?
12. Construct a punnet square to show this mating and the resulting F2 offspring
13. Using this web site https://www.biologycorner.com/fruitflygenetics/flash2.html mate a white-eyed female to a wild type male. These traits are X-linked. Note the abdominal differences between the male and female flies. Ignore the one red eyed male it's a glitch in the program. What are the phenotypes of the F1 generation?
14. Based on the F1 results, which trait is dominant and which is recessive?
15. What is the genotype of the male parent?
16. What is the genotype of the female parent?
17. Construct a punnet square to show this mating and the resulting F1 offspring.
18. Now mate your F1 generation. What are the phenotypes of the F2 generation?
19. What are the genotypes of each parent?
20. Construct a punnet square to show this mating and the resulting F2 offspring.
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