HHMI Bulletin | November 2011
About half of students who enter college with a science major in mind end up majoring in something else, observes Irving Epstein. The roadblock is often freshman chemistry class. read story
About half of students who enter college with a science major in mind end up majoring in something else, observes Irving Epstein. The roadblock is often freshman chemistry class. read story
Scientific discoveries sometimes emerge from the most unexpected places. HHMI Professor Graham C. Walker, for instance, never predicted that a classroom experiment with soil bacteria would uncover a missing link in the biochemical pathway for manufacturing vitamin B12.
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DNA microarray analysis is one of the fastest-growing new technologies in the field of genetic research. Scientists are using DNA microarrays to investigate everything from cancer to pest control. Now you can do your own DNA microarray experiment! Here you will use a DNA microarray to investigate the differences between a healthy cell and a cancer cell. virtual lab
PCR is a relatively simple and inexpensive tool that you can use to focus in on a segment of DNA and copy it billions of times over. PCR is used every day to diagnose diseases, identify bacteria and viruses, match criminals to crime scenes, and in many other ways. Step up to the virtual lab bench and see how it works! virtual lab
Having recently retired to the Southwest, biochemist Stanley Cohen was getting restless. Cactus gardening, he soon came to learn, requires only so much attention, and he missed the kind of personal interactions he had in his lab back at Vanderbilt University. read in full issue (pdf)