Search
Filter Results
- Resource Type
- Article1
- Book1
- Book Digital1
- Result From
- Lane Catalog1
- PubMed1
-
Year
- Journal Title
- Genetics1
Search Results
Sort by
- BookC. Philip Larson Jr., Richard A. Jaffe.Contents:
Chapter 1. Preoperative Evaluation
Chapter 2. Induction of General Anesthesia
Chapter 3. Role of the Laryngeal Mask Airway in Airway Management
Chapter 4. Essentials of Airway Management
Chapter 5. Laryngospasm: The Silent Menace
Chapter 6. Cricothyrotomy: A Lesson to Be Learned
Chapter 7. Bronchospasm vs. Bronchoconstriction: A Different View
Chapter 8. Management of the Full Stomach
Chapter 9. Nitrous Oxide
Yea or Nay
Chapter 10. Meperidine: A Forgotten Jewel
Chapter 11. Sevoflurane: The Best Volatile Anesthetic Ever Developed
Chapter 12. The Bariatric Challenge
Chapter 13. Preventing Ischemic Optic Neuropathy during Posterior Spine Surgery
Chapter 14. Continuous Spinal Anesthesia: A Lost Art
Chapter 15. Epidural Anesthesia: The Best Technique
Chapter 16. An Incendiary Issue: Avoiding Operating Room Fires
Chapter 17. Tension Pneumothorax
Chapter 18. Tips on Blood-Gas Analysis
Chapter 19. Preoxygenation
Chapter 20. Diffusion Hypoxia.Digital Access Springer 2017 - ArticleHall BG, Clarke ND.Genetics. 1977 Feb;85(2):193-201.The evolution of lactose utilization by lacZ deletion strains of E. coli occurs via mutations in the ebg genes. We show that one kind of mutation in the regulatory gene ebgR results in a repressor which retains the ability to repress synthesis of ebg enzymes, but which permits 4.5-fold more ebg enzyme synthesis during lactose induction than does the wild-type repressor. A comparison between the growth rate of various ebg+ strains on lactose and the amount of ebg enzyme synthesized by these strains shows that the rate of enzyme synthesis permitted by the wild-type repressor is insufficient for growth on lactose as a sole carbon source by a cell with the most active ebg lactase yet isolated. We conclude, therefore, that the evolution of lactose utilization requires both a structural and a regulatory mutation.