Three Questions: 1. Why does DNA replicate from 5′ to 3′ end, instead of from 3′ to 5′ end? 2. Why do we need DNA polymerase I and not just DNA polymerase III, if polymerase I is just initiating DNA replication and polymerase III does all the “heavy lifting” and continues it, […]

Charley shows up at his doctors office complaining of a feeling of weakness, which is getting worse, chronic fatigue and loss of appetite. His weight compared to that of 6 months ago is down about 10 pounds. He denies dieting. After obtaining a complete history, Charley’s physician performs three tests. […]

Assignments LP5 Assignment: Lipid Panels Case Study LP5. Identify the role of lipids, triglycerides, phospholipids, and cholesterol in the diet. Directions: Write a case study on lipid panels of the three subjects below. Identify what the LDL, HDL, and triglycerides are for each and how they impact overall cardiovascular health. […]

Bacterial cells can take up the amino acid tryptophan (Trp) from their surroundings, or, if there is an insufficient external supply, they can synthesize tryptophan from other small molecules. The trp repressor is a bacterial gene regulatory protein that represses the transcription of genes that code for the enzymes required […]