You have determined the DNA- binding site of a protein by determining the DNA footprinting after labeling one strand. To check your results, you repeat the experiment after labeling the other strand of the duplex. You find that the footprints are slightly offset from one another relative to the sequence […]
A plasma membrane with surface area of 5000 µm2; there are 106 phospholipid molecules per µm2 in each leaflet of the membrane; there are 3000 molecules of flippase enzyme associated with the plasma membrane; each flippase enzyme molecule can catalyze 100 flips per second (we’ll ignore enzyme specificity for the […]
1. The structure of biological membranes is determined primarily by the lipid bilayer but the specific functions of these membranes are carried out by proteins associated with the membrane. State whether you believe this statement is true or false and explain your answer? 2. You are working on a farm and […]
Case Study: Animal use in toxicity testing has long been a controversial issue, however, there can be benefits. Read “The Use ofAnimals in Research,” which is an article. Evaluate the current policies outlined in the Position Statement. Use the instructions to guide you in your analysis. Feelfree to use additional […]