Table of contents
- 1. Introduction to Genetics51m
- 2. Mendel's Laws of Inheritance3h 37m
- 3. Extensions to Mendelian Inheritance2h 41m
- 4. Genetic Mapping and Linkage2h 28m
- 5. Genetics of Bacteria and Viruses1h 21m
- 6. Chromosomal Variation1h 48m
- 7. DNA and Chromosome Structure56m
- 8. DNA Replication1h 10m
- 9. Mitosis and Meiosis1h 34m
- 10. Transcription1h 0m
- 11. Translation58m
- 12. Gene Regulation in Prokaryotes1h 19m
- 13. Gene Regulation in Eukaryotes44m
- 14. Genetic Control of Development44m
- 15. Genomes and Genomics1h 50m
- 16. Transposable Elements47m
- 17. Mutation, Repair, and Recombination1h 6m
- 18. Molecular Genetic Tools19m
- 19. Cancer Genetics29m
- 20. Quantitative Genetics1h 26m
- 21. Population Genetics50m
- 22. Evolutionary Genetics29m
12. Gene Regulation in Prokaryotes
Tryptophan Operon and Attenuation
4:49 minutes
Problem 32b
Textbook Question
Textbook QuestionSection 9.4 describes the function of tRNA synthetases in attaching amino acids to tRNAs (see Figure 9.16). Suppose the tRNA synthetase responsible for attaching tryptophan to tRNA is mutated in a bacterial strain with the result that the tRNA synthetase functions at about 15% of the efficiency of the wild-type tRNA synthetase. How would this mutation affect attenuation of the tryptophan operon? Explain your answer.
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