Name Microbiology 2210 Answer Key Practice Test 1 Directions: Choose the most correct response to answer the statement. ___1. Archaea a. belong to the kingdom Protista b. have petidoglycan in their cell walls c. belong to the domain Bacteria
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dissolved‚ the microcentrifuge‚ the thermal cycler‚ the primer solution‚ the automatic cycler‚ the agarose gel‚ whether or not the electrophoresis apparatus was set up and used properly‚ the loading of the DNA samples in the wells of the gel bed‚ proper staining of the DNA‚ and finally the operator error. Our hypothesis is 50 % of the subjects DNA samples contain the genotype. Our null hypothesis is that the genotype is there by chance and there is no genotype in these samples. Experiment/ Methods
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DMLS/FT/1B/02 Admin number: P1138687 Summary This experiment aims to observe mitosis and meiosis on cell specimens. It involves the modelling of the stages of meiosis and also the staining procedures to identify mitosis in onion root tip. There are two parts to the procedure of the experiment whereby the first is staining and observing mitosis in onion root tips and the second being observing and comparing mitosis between whitefish blastula and onion root tip. The results are that the five stages of
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They also used flow cytometry to help them to identify and sort through the cells and their DNA by staining them with a fluorescent dye and detecting the fluorescence through a illumination microscope. This helped them to calculate the number of replication forks per cell‚ along with the cells age and size at initiation. The researcher did an excellent job describing each media and staining technique that they used during their experiments. For example‚ they explained exactly how much nutrient
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Introduction This study approaches the understanding of the autosomal recessive “mini-muscle” phenotype in mice. Smaller body size and muscles as well as increased maximal oxygen intake are observed in mice with the “mini-muscle” phenotype. This observation raises an issue about why the selectively bred mice with the “mini-muscle” phenotype have reduced triceps and thigh muscle mass as they are able to cover greater distances; due to faster running speed‚ on an activity wheel compared to normal mice
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CHAPTER ONE INTRODUCTION AND LITERATURE REVIEW 1.0 Ginger Ginger is a knotted‚ thick‚ beige underground stem (rhizome). The stem extends roughly 12 inches above ground with long‚ narrow‚ ribbed‚ green leaves‚ and white or yellowish-green flowers. The important active components of the ginger root are thought to be volatile oils and pungent phenol compounds (such as gingerols and shogaols). 1.1 Parasitological examination of stool specimen This is the examination of intestinal parasites
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TESTING AND SPECIFICATION OF DRYMIX MORTAR IN SINGAPORE ABSTRACT Singapore is a small island country‚ but has won renown as uncorrupted government and high quality products. Independent testing and inspection played a very important role for this achievement. The Housing and Development Board (HDB) is the sole public authority in Singapore and was set up as a statutory on 1 February 1960. Within 45 years‚ it built more than 700‚000 flats housing approximately 86% of the population. Every
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investigations of each unknown in Table 1 by completing the following steps: 1) Apply the stain to your first unknown slide and examine it under the microscope. 2) Record the shape of the bacteria‚ the arrangement of the bacteria‚ and the gram staining characteristics. 3) Analyze and record the G+C content of the sample by dragging the DNA tube that corresponds to the bacterial sample to the GC Content Measuring Apparatus. (Note: the identification of the DNA tubes may be confusing;
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cells are. Prokaryotic cells reproduce and divide by binary fission and eukaryotic cells reduce and divide by mitosis and meiosis. 2) Differentiate gram-positive and gram-negative bacteria. a) A gram positive bacteria remains colored with gram staining even after washing with alcohol or acetone‚ whereas gram negative bacteria does not retain the stain when washed with alcohol or acetone. A gram positive bacteria outer membrane is absent and gram negative bacteria outer membrane is present. A gram
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Quantitative histological analysis of the laceration site by vimentin immunohistochemical staining 4 weeks after injury. Top panels (A)‚ vimentin immunohistochemical stain; lower panel (B)‚ area of scar tissue per field. Control (C)‚ muscles treated with IGF-1 (IG)‚ muscles treated with decorin (D)‚ and muscles treated with both agents (IGϩD); *P Ͻ 0.05. FIGURE 3. Quantitative analysis of scar tissue by trichrome staining. Scar tissue containing collagen (blue) was analyzed. Top panels‚ trichrome stain;
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