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)
12. Gene Regulation in Prokaryotes
Lac Operon
12. Gene Regulation in Prokaryotes
Lac Operon: Study with Video Lessons, Practice Problems & Examples
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9PRACTICE PROBLEM
A researcher is studying the regulation of the lac operon in E. coli and performing a northern blot analysis. They isolate mRNA from two bacterial strains: one with a wild-type lac operon genotype and another with a deletion mutation in the lacZ gene. The researcher hybridizes the mRNA with a probe specific to the lacZ gene.
What is the expected result of the northern blot analysis for the wild-type strain in a medium containing only glucose?
A researcher is studying the regulation of the lac operon in E. coli and performing a northern blot analysis. They isolate mRNA from two bacterial strains: one with a wild-type lac operon genotype and another with a deletion mutation in the lacZ gene. The researcher hybridizes the mRNA with a probe specific to the lacZ gene.
What is the expected result of the northern blot analysis for the wild-type strain in a medium containing only glucose?