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 […]

Part 1 1. Nitrogen fixation is a natural process by which inert or unreactive forms of nitrogen are transformed into usable nitrogen. Why is this process important to life? 2. Given what you have learned about the hydrogen bonding shared between nucleic acids in DNA, which pair is more stable […]

2. Write a complete description Flexor digitorum superficialis relationship to the other elements of the musculoskeletal system that interact with with it. Pay attention to the muscle’s attachments, the locations and shapes of joints affected by it, as well as their planes of movement, the restrictions of ligaments and other […]