1. In Drosophila (fruit flies) Curly (c) wings are recessive and normal (C) wings are dominant....
1. In Drosophila (fruit flies) Curly (c) wings are recessive and normal (C) wings are dominant. If you cross curly wing flies with homozygous normal wing what is the expected genotype and phenotype of the F1 generation? What is the expected phenotypic ratio of the F2 generation?
Homework Answers
cc x CC ----> All the progeny of F1 will have genotype cC and phenotype of Normal wings.
| C | C | |
| c | cC | cC |
| c | cC | cC |
In the F2 generation if we cross cC x cC then the possible genotypes are Cc and cc in 3:1 ration. So the resultant phenotype is 3 normal winged flies and 1 curly fly.
| c | C | |
| c | cc | cC |
| C | Cc | CC |
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