How do bacteria become resistant to antibiotics? Where do the names for prescription drugs come from? More Great Links U.S. Department of Agriculture (USDA): Penicillin: Opening the Era of Antibiotics The New York Times: "The Fat Drug" ...
NEW UNDERSTANDING of how bacteria develop antibiotic resistance has both surprised and alarmed many infectious disease experts.In the escalating chemical arms race between humans and microbes, pathogens not only are exploiting mutations that help them withstand the widespread use of antibiotics, some have...
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Apart from mutation bacteria can acquire drug resistance through horizontal gene transfer. Horizontal gene transfer involves a bacteria acquiring...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework an...
get up early. Staying up late is bad for our health. Second, we must have the right kinds of food. We should eat more fruit and vegetables and less meat. We should drink a lot of water. We should have healthy eating habits. Third, we should do more exercise to build up our bodies...
Penicillin-resistant bacteria use many mechanisms to avoid destruction by penicillin. Learn about these mechanisms (restrict transport, modify target molecules, and beta lactamases) and find out how scientists are creating drugs to resist penicillin resistance. ...
The freezer is a marvel of modern-day food preservation that has been made possible by the introduction of advanced technology. By preventing the growth of bacteria, the equipment can preserve food chilled and fit for consumption for several days or weeks at the right refrigerator temperature. ...
A genuine HEPA filter is much more hygienic than an ordinary one because it will stop mold spores and even some bacteria and viruses. It's cleaning at the microscopic—and indeed nanoscopic—scale. By comparison, the fibers in a HEPA filter are roughly 0.002–0.5 microns (2–500 nanometers...
This system is oftenlikened to the human adaptive immune system, which similarly stores a "memory" of previous infections in order to stave off repeat encounters. Rather than usingimmunecells, like humans do, bacteria use CRISPR. CRISPR RNA (crRNA) and Cas9:CRISPR DNA serves as a permanent re...
Researchers have also discovered that transplanting the gut bacteria from conventionally raised mice into the gut of mice raised in a sterile environment not only led to the kind of weight gain, fat gain, and specific areas of fat accumulation associated with insulin resistance; they also found th...