The reasons for not drilling for oil in the Arctic is the remoteness, I remember in the news a few years ago about the oil spill in the Gulf of Mexico and how hard it was to control and clear up it took several months. If  this was to occur […]

In module 5 you learned how careful scrutiny and constructive criticism are an integral part of the scientific process and how publication of a research paper in a peer-reviewed journal is just one of many steps in the process of scientific inquiry. You were asked to critique a peer-reviewed scientific […]

Q1. In the Hin recombinase system of Salmonella typhimurium discussed in class, what do you assume would be the effect on the switch of reversing orientation of one of the hix sites (it doesn’t matter whether is the left hix site or the right hix site)? Q2. A population of […]

In Beadle and Tatum’s study of Neurospora , they were able to identify three classes of arginine auxotrophs, mutants that needed arginine added to minimal media in order to grow. The pathway in the production of arginine includes the following steps: precursor ornithine citrulline arginine. What nutrient(s) had to be […]