4. Genetic Mapping and Linkage
Trihybrid Cross
13PRACTICE PROBLEM
In Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are encoded by recessive genes found on chromosome 3. A researcher crosses se cu e/ + + + females with se cu e/ se cu e males and obtains the following progeny data:
![](https://lightcat-files.s3.amazonaws.com/problem_images/657f6bc64fe632e9-1679582606011.jpg)
Determine the recombination frequency between se and e.
In Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are encoded by recessive genes found on chromosome 3. A researcher crosses se cu e/ + + + females with se cu e/ se cu e males and obtains the following progeny data:
Determine the recombination frequency between se and e.