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  • Antibiotic Resistance In Bacteria
    878 words
    Antibiotic resistance in bacteria: "The more times you use a drug, the more it will decrease the effect it has on you". For about 50 years, antibiotics have been the answer to many bacterial infections. Antibiotics are chemical substances that are secreted by living things. Doctors prescribed these medicines to cure many diseases. During World War II, they treated one of the biggest killers during wartime, infected wounds. It was the beginning of the antibiotic era. But just when antibiotics wer...
  • Lb's Resistance To The Ampicillin
    811 words
    Title: Colony Transformation Lab Purpose: To study the behavior of Escherichia coli once it has been introduced to a foreign gene. Hypothesis: If the ampicillin resistant DNA is introduced into the E. coli bacteria, through the uptake of this DNA the bacteria will receive the resistant gene that will permit the bacteria to grow freely in the presence of ampicillin. Experimental Design: By observing the E. coli bacteria one can study how it reacts when a foreign gene such as the ampicillin resist...
  • Bacteria For Drug Resistance
    1,790 words
    Since antibiotics, such as penicillin, became widely available in the 1940's, they have been called miracle drugs. They have been able to eliminate bacteria without significantly harming the other cells of the host. Now with each passing year, bacteria that are immune to antibiotics have become more and more common. This turn of events presents us with an alarming problem. Strains of bacteria that are resistant to all prescribed antibiotics are beginning to appear. As a result, diseases such as ...
  • Genes For Resistance To Antimicrobial Agents
    1,391 words
    Fact Sheet No 194 May 1998 ANTIMICROBIAL RESISTANCEAntimicrobial agents (antibiotics and related medicinal products) are among the wonder drugs of the twentieth century. They have transformed our ability to treat many infectious diseases that were previously killers. However, through massive and increasing use of antimicrobials in humans, animals, fish and in agriculture, a resistance problem has been created that is rapidly moving to the forefront of public health concerns. Causes Microbes (bac...
  • This Resistance To Antibiotics
    1,906 words
    What Doesnt Kill Them Makes Them Stronger Humans live in constant contact with not only plants and animals, but also with bacteria. Bacteria are everywhere: in water and soil and in the bodies of humans and other animals. The majority of bacteria dont have the ability to cause disease, but that doesnt mean that they are totally harmless. The problem arises when disease causing bacteria interact, and are frequently in contact with the commensal, or harmless bacteria. They serve as reservoirs for ...
  • Bacterial Resistance To Many Antibiotics
    4,163 words
    During 1997, an event doctors had been fearing finally occurred. In three geographically separate patients, an often deadly bacterium, Staphylococcus aureus, responded poorly to a once reliable antidote– the antibiotic vancomycin. Fortunately, in those patients, the bacteria remained susceptible to other drugs and was eradicated. But the appearance of S. aureus not readily cleared by vancomycin foreshadows trouble. Worldwide, many strains of S. aureus are already resistant to all antibioti...
  • Antibiotic Resistance
    407 words
    Antibiotic Resistance Darwin's theory Antibiotic Resistance Essay, Research Paper Darwin's theory of evolution can be explained like this; the environment acts as a selective agent, weeding out organisms less able to survive. Darwin described natural selection as a process in which organisms become better adapted to their environment. The organisms that evolved with beneficial variations are more likely to survive and reproduce, they pass on the favorable genetic material. Over time, the genetic...

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