Journal of Experimental Microbiology and Immunology (JEMI) Vol. 14: 98-100 Copyright © April 2010‚ M&I UBC The Effects of the Ratio of Surface Area to Volume on Transformation Efficiency in Escherichia coli K-12 Eliana Pouchard‚ Steve Teng‚ and Cameron Wong Department of Microbiology & Immunology‚ UBC In the process of transformation‚ bact eria take up DNA fr om the environment through their cell wall. To induce competence in the cells‚ the DNA for uptake must first attach
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Session #1 Lab 1 OBSERVING BACTERIA AND BLOOD D Haynes BIO-218A Microbiology Lab Friday‚ January 17‚ 5:00pm Objective(s): Our objective is to gain knowledge of the functions and operations of the microscope through observation of bacteria and blood slides that are available for this assignment. We are also learning to “see” and observe various bacteria and their shapes as well as live yogurt cultures‚ blood‚ plaque and cheek swab samples and their arrangements. We
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erosion‚ or open sore in the outer layer of the cornea‚ the transparent area at the front of the eyeball" (Medlineplus). Corneal Ulcer has many different names‚ depending on the microorganism that causes the ulcer. Some of the major diseases include Bacterial Keratitis‚ Fungal Keratitis‚ Acanthamoeba Keratitis‚ and Herpes Simplex Keratitis. Bacteria‚ fungi‚ amoebae‚ and viruses are the prime cause for these diseases. These microorganisms settle in the cornea‚ grow‚ and feed on the cornea. This process
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REPLICA PLATING AND INDIRECT SELECTION OF BACTERIAL MUTANTS JOSHUA LEDERBERG AND ESTHER M. LEDERBERG Department of Genetics‚ ’ College of Agriculture‚ University of Wisconsin‚ Madison‚ Wisconsin Received for publication August 31‚ 1951 Elective enrichment is an indispensable technique in bacterial physiology and genetics (van Niel‚ 1949). Specific biotypes are most readily isolated by the establishment of cultural conditions that favor their growth or survival. It has been repeatedly questioned
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a series of metabolic tests‚ identify which bacteria genus resided in the pure culture received. A nutrient broth inoculated with bacterial culture (numbered 45‚ henceforth referenced as U45) was selected and a streak plate was made to isolate a pure culture for use throughout the assignment. From the streak plate‚ several slides were made to determine the morphology of unknown 45. A Gram stain‚ used to indicate the type of cell wall possessed by the bacterium‚ was performed. U45 stained a bright
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for minority males. The idea is that if young men of color start following the plan laid out by the program starting at age 7 and carried on through their adult life‚ then they will become responsible and conscientious members of society. Per the MBK page on the Whitehouse.gov website‚ the milestones are: Getting a Healthy Start and Entering School Ready to Learn. All children should have a healthy
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Creation of a Bacterial Cell Controlled by a Chemically Synthesized Genome Daniel G. Gibson et al. Science 329‚ 52 (2010); DOI: 10.1126/science.1190719 This copy is for your personal‚ non-commercial use only. Permission to republish or repurpose articles or portions of articles can be obtained by following the guidelines here. The following resources related to this article are available online at www.sciencemag.org (this information is current as of March 24‚ 2013 ): Updated information and
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What is it?Lactobacillus is a type of bacteria. There are lots of different species of lactobacillus. These are "friendly" bacteria that normally live in our digestive‚ urinary‚ and genital systems without causing disease. Lactobacillus is also in some fermented foods like yogurt and in dietary supplements.Lactobacillus is used for treating and preventing diarrhea‚ including infectious types such as rotaviral diarrhea in children and traveler’s diarrhea. It is also used to prevent and treat diarrhea
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MBK – Lab Report Differential Staining Questions: A. What is a differential stain? How is it different from a simple stain? 1. A differential stain is a stain that differentiates between gram-positive and gram-negative bacteria. Bacteria that stain purple are considered gram-positive and those that stain pink are considered gram-negative. 2. A simple stain is a stain that reacts with all microbes in and identical fashion. They are used to increase contrast. 3. They
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Microbiology Study Guide Chapters 1-6 Chapter 1 Main Themes of Microbiology Microorganisms Most are not Pathogens Prokaryotic-no nucleus or organelles Very simplistic—like bacteria Eukaryotic-has nucleus and organelles like mitochondria Includes fungus‚ and animals Acellular-not even a complete cell Includes viruses and prions like those that cause Mad Cow disease Six main types of microorganisms Bacterium (prokaryotic) Fungus (eukaryotic) Algae (eukaryotic) Virus (acellular)
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