Table of contents
- 1. Introduction to Genetics(0)
- 2. Mendel's Laws of Inheritance(0)
- 3. Extensions to Mendelian Inheritance(0)
- 4. Genetic Mapping and Linkage(0)
- 5. Genetics of Bacteria and Viruses(0)
- 6. Chromosomal Variation(0)
- 7. DNA and Chromosome Structure(0)
- 8. DNA Replication(0)
- 9. Mitosis and Meiosis(0)
- 10. Transcription(0)
- 11. Translation(0)
- 12. Gene Regulation in Prokaryotes(0)
- 13. Gene Regulation in Eukaryotes(0)
- 14. Genetic Control of Development(0)
- 15. Genomes and Genomics(0)
- 16. Transposable Elements(0)
- 17. Mutation, Repair, and Recombination(0)
- 18. Molecular Genetic Tools(0)
- 19. Cancer Genetics(0)
- 20. Quantitative Genetics(0)
- 21. Population Genetics(0)
- 22. Evolutionary Genetics(0)
4. Genetic Mapping and Linkage
Mapping Genes
4. Genetic Mapping and Linkage
Mapping Genes: Study with Video Lessons, Practice Problems & Examples
Back to all problems
48PRACTICE PROBLEM
The purple gene in Drosophila specifies the normal and red eyes (for the dominant pr+ allele) and purple eyes ( for the recessive pr allele). Another gene called the vestigial gene specifies normal, long wings (for dominant vg+ allele) and short wings (for recessive vg allele). A double heterozygous female mates with a tester (homozygous recessive for both genes) and yields the following offspring:
pr+ vg+ and pr vg: 1422
pr vg and pr vg: 1032
pr+ vg and pr vg: 134
pr vg+ and pr vg: 139
What is the recombination frequency between the purple and vestigial genes?
The purple gene in Drosophila specifies the normal and red eyes (for the dominant pr+ allele) and purple eyes ( for the recessive pr allele). Another gene called the vestigial gene specifies normal, long wings (for dominant vg+ allele) and short wings (for recessive vg allele). A double heterozygous female mates with a tester (homozygous recessive for both genes) and yields the following offspring:
pr+ vg+ and pr vg: 1422
pr vg and pr vg: 1032
pr+ vg and pr vg: 134
pr vg+ and pr vg: 139
What is the recombination frequency between the purple and vestigial genes?