Fungi is one of the five kingdoms of the living world that contains a diversity of organisms‚ there is an estimation of about 1.5 million species of fungi worldwide out of which‚ approximately 120000 species and majority tends to be living in an environment which is either aquatic or terrestrial ascomycetes and basidiomycetes species (Kirk‚ 2008). Have been described till date‚ however the numbers are dynamic in steadily escalating (Hawksworth‚ 1991) Cercospora zeae-maydisis fungus that is responsible
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10 Worst Computer Viruses of All Time Computer viruses can be a nightmare. Some can wipe out the information on a hard drive‚ tie up traffic on a computer network for hours‚ turn an innocent machine into a zombie and replicate and send themselves to other computers. If you’ve never had a machine fall victim to a computer virus‚ you may wonder what the fuss is about. But the concern is understandable -- according to Consumer Reports‚ computer viruses helped contribute to $8.5 billion in consumer
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maliciously by destroying or corrupting data. If the infected software is transferred to or accessed by another computer system‚ the virus spreads to the other system. Viruses have become a serious problem in recent years‚ and currently‚ thousands of known virus programs exist (Reed 85-102). Three types of viruses are a boot sector viruses‚ file virus‚ and Trojan horse virus. A boot sector virus infects the boot program used to start the system. When the infected boot program executes‚ the virus is
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observing various bacterial shapes and their arrangements in different types of specimens of bacteria. The microscope parts and capabilities were clearly identified and used successfully and the bacteria were clearly illustrated showing the bacterial shapes and arrangements with all the appropriate magnification being utilized. Through various magnifications using 10x‚ 40x and 100x oil immersion lenses‚ the bacteria specimens‚ along with fresh and prepared yogurt‚ demonstrated full visual optical views
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Aims The purpose of the two experiments was to determine the fundamental effects that temperature has on the growth and survival of bacteria. During the first experiment five different bacterial broth cultures of Escherichia coli‚ Pseudomonas fluorescens‚ Enterococcus faecalis‚ Bacillus subtilis and Bacillus stearothermophilus were individually incubated at temperatures of 5‚ 25‚ 37‚ 45 and 55°C for one week in an aim to distinguish the effect temperature has on growth and survival of the five different
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Title: Observing Bacteria and Blood- Lab #1 Purpose: Being able to learn how to correctly use a microscope and the oil immersion lens to be able to see the prepared slides. Also to learn how to prepare my own yogurt and blood slides. Procedure: First‚ set up the microscope. Clean the ocular lenses and objectives with lens paper. Then pace the prepared e slide on the stage and make adjustments. Turn the rotating nosepiece until the 10x objective is above the ring of light coming through the slide
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Sampling of Gram-Positive Bacteria and Antibiotic Resistance Resting We thought it would be interesting to find out the different bacteria that grow on things we use on a daily basis and the level of antibiotic resistance that those bacteria have. We chose to swab the toilet seat in the MATC women’s bathroom and the ATM machine in the commons area on campus. We were certain the ATM would be dirtier than the toilet seat since the bathrooms get cleaned every day. The first step we took in testing
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The Role of Agarase in Agar-Degrading Bacteria Abstract Agar-Degrading (agarolytic) Bacteria is physiological class of bacteria capable of utilising agar as a sole carbon source. This ability is made available by the use of agarases - enzymes which break down agarose into oligosaccharides. This physiological class branches through genii‚ regardless of Gram Stain status or morphology. Through a review of scientific literature we can find identification methods‚ optimum conditions and the
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Material Appendix B – Identifying Bacteria Bacteria identification is accomplished in a number of ways. Two common tools microbiologists use to identify unknown bacteria include dichotomous key and biochemical tests. The dichotomous key is useful when a microbiologist only needs to know which group an unknown microbe belongs to on a general level. When a microbiologist needs to identify a specific bacterium‚ biochemical tests are used. PART ONE: GENERAL BACTERIA IDENTIFICATION Review the dichotomous
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Antibiotic Resistance in Bacteria 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‚ it treated one of the biggest killers during wartime - infected wounds. It was the beginning of the antibiotic era. But just when antibiotics were being mass produced‚ bacteria started to evolve and became resistant to these medicines
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