Abstract Some bacteria are able to go through transformation making new combinations of genes. Transformation is a way of gene variability in bacteria. This experiment is based on the transformation mechanism of bacteria and gene regulation. The bacteria used for the experiment was Escherichia coli and the genes introduces for the transformation were: gfp and bla by a pGLO™ plasmid. After the insertion of the target genes and growing the bacteria on specialized LB media‚ it could be seen that the
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Isolation and identification of an unknown bacterium Pillay‚ Esmerelda (209504371) School of Biochemistry‚ Genetics and Microbiology Department of Microbiology University of Kwa-zulu Natal 25 October 2010 ABSTRACT Different types of bacteria in various forms are found all around us‚ and it is a microbiologist’s job to be able to identify these bacteria. Using various staining techniques and physiological tests‚ an isolated bacterium can be identified. In this experiment‚ a single bacterial
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Cheese: A Home to Bacteria “Cheese is just a means of controlled spoilage‚” said Steve Jenkins‚ a Master Cheesemonger at Fairway Market. (Cheese) Bacteria‚ or starter cultures‚ control the flavor‚ hardness‚ type‚ and many more aspects of cheese. The two main strands of bacteria involved in cheese making are Lactococcus and Lactobacillus‚ which ferment sugars found in the milk. Humans have learned to manipulate bacteria and the fermentation process to produce different types of cheese such as Swiss
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Bacteria and Archaea Bacteria and Archaea All single-celled organisms in the Bacteria and Archaea domains are referred to as prokaryotes. Prokaryotes are organisms whose genetic material is not contained within a nuclear envelop. These cells are profoundly important to the environment‚ medicine‚ and industry. (Postlethwait & Hopson‚ 2010‚ p. 196) Bacteria and Archaea are similar in shape‚ size‚ and appearance. They are both found occurring as rods (bacilli)‚ spheres (cocci)
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Effectiveness on Gram Positive and Gram Negative Bacteria. INTRODUCTION: Bacteria are microbial organisms which are present in various environments. Many bacteria are good and help humans synthesize materials and assist in biological processes‚ such as digestion. However‚ some bacteria can cause harmful diseases. When harmful bacteria infects the body‚ people take antibiotics in order to suppress bacteria. Different antibiotics have different ways they suppress bacteria‚ and the efficacy of antibiotics depends
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Antibiotics attack bacteria by targeting a protein‚ or stopping the creation of a cell wall and or how they metabolize sugar. This method of targeting the specific functions of bacteria have allowed antibiotics like Penicillin to save millions of live throughout in the past few decades. As amazing as antibiotics are they have a really smart enemy. Bacteria are cleaver little single-celled organisms. Bacteria can actually barf up the antibiotics we use to fight them. The genetic information bacteria gather in
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some people see bacteria as something that is harmful and that causes nothing but illness and infections. Bacteria can actually be helpful as well. It can provide vitamins to your body‚ help digestion‚ destroy bad organisms‚ help make medicines and also help out with the environment. In this research paper‚ it will describe two bacteria that are helpful and sometimes harmful to humans and the environment‚ which are E. coli and Lactobacillus Acidophilus. E. coli E. coli is the bacteria that live in
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I. Title Identification of an Unknown Plasmid In this experiment‚ we determined the phenotypic capability of an unknown plasmid along with its size. With the use of gel electrophoresis‚ we analyzed the gel photograph by using a standard DNA marker‚ Lambda HindIII‚ and came to a conclusion based on our results. II. Abstract Two experiments were done to identify an unknown plasmid. The success of these experiments came from the use of modern day technology involving gel electrophoresis
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Bacteria and Fungi are both very diverse groups of organisms and have numerous characteristics which set them apart from other living creatures. The domain bacteria possess traits which differentiate themselves from other organisms for example bacteria have prokaryotic cells‚ which means that their cells lack a nucleus‚ instead‚ they contain a nucleoid which contains a single circular chromosome. Additionally‚ bacteria do not have membrane-bound organelles‚ but most do have a cell wall made of peptidoglycan
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which marked the beginning of a blossoming period to how this information could be used in the future (Weirich‚ 2005). This discovery gave way to understanding these species abilities and the positive effects it has on humans and other existing mammals. Acidophillic extremophiles exist as two types of broad categories: Archaea and Bacteria. Lactobacillus
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