Fly Lab Shannon Ladd Introduction: Famers and herders have been selectively breeding their plans and animals to produce more useful hybrids for thousands of years. It was somewhat of a hit or miss process since the actual mechanisms governing inheritance were unknown. Knowledge of these genetic mechanisms finally came as a result of careful laboratory breeding experiments carried out over the last century and a half. A contributing geneticist named Gregor Mendel (1822-1884)‚ discovered through
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Grade 11 Dynamics Lab Report Friction SPH3U1-02 Williams. C. By----James & Hao Feng & Henry Zhang Purpose: By measuring the friction and μ of a container and change different variables including mass‚ surface and gradient‚ get causes of the change of friction and μ. Materials: A container Three Pen bag in different mass A rough wood board A clean desk Rulers Thrust meter. Steps Prepare
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Formaldehyde is known to be one of the most reactive organic compounds. It can be produced by various reactions. It can produced by methods such as: Methanol undergoes an oxidation reaction in the presence of catalysts‚ ethyl-alcohol‚ coal gas‚ ethylene‚ methane‚ glycol‚ glycerin‚ and carbon monoxide Production of formalin form methanol: Formaldehyde is manufactured from methanol and air either by using a silver catalyst or a metal oxide catalyst. Using Silver Catalyst: To convert methanol to
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bacteria will be one of the following: Enterococcus faecalis‚ Staphylococcus saprophyticus‚ Escherichia coli‚ Enterobacter aerogenes‚ Proteus vulgaris‚ Salmonella [I assume typhimurium]‚ or Shigella [either flexneri or sonnei‚ we used both in our lab during the semester]. Procedure {and observations}: Observe bacterial colony morphology. {Colonies are large‚ beige or cream-colored‚ with irregular borders.} Prepare two slides for gram staining and viewing under a microscope. {Either my gram-stain
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ABSTRACT: This lab allows us to observe the conversion of hydrogen peroxide (H2O2) into water and oxygen gas. An enzyme known as catalase facilitates this decomposition reaction. The catalase enzyme acts as catalysis‚ helping lower the energy needed to activate the reaction while the enzyme itself is not affected. Catalase is a digestive enzyme used to break down hydrogen peroxide‚ which is a normal byproduct of cellular respiration. The reaction could take place without the help of catalase‚ but
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salt solution is 6.3grams and the 15% salt solution is 6.8 grams. My hypothesis was that the carrot would shrink and be very small and gooey‚ but it was wrong. The controlled variable in this lab is the carrot and time‚ the manipulated variable is the salt solution‚ and the resulting variable in this lab is what happens to the carrot. Materials and Methods: . Salt solution ( 0-15%) . 4 Carrot pieces from same Carrot( Cut carrot in half if needed) . 4 Beakers . Water . Triple beam balance
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purpose of antimicrobial drugs is either to inhibit virus replication‚ without harming host tissues or to interrupt the cell processes or structures of bacteria‚ fungi‚ and protozoa. This lab has brought great interest to me because this is the way physicians’ control/treat infectious disease within our bodies. In this lab‚ chemotherapeutic agents were evaluated by the disk-diffusion method. Chemotherapeutic agents are placed on the surface of a Petri plate containing Mueller-Hinton agar‚ which allows
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Benjamin Kleveland 502 October 26‚ 2014 Lab 7 Report Lights Distance and Wavelength Effect on Photosynthesis Photosynthesis and cellular respiration are often mistaken as the same thing. Although they are similar in many ways‚ photosynthesis and cellular respiration are the exact opposite of each other. Not figuratively‚ but literally the reverse (Photosynthesis). They incorporate the others products while adding some outside energy to create a never ending cycle. This brings us to the photochemical
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Labs and Diagnostics Colonoscopy This test allows direct visualization of the small bowel‚ rectum‚ and colon. It is recommended for patients who have experienced fecal occult blood or obvious blood in the stool. It is also recommended for patients who have experienced a change in bowel habits or are experiencing abdominal pain. In patients who have had colorectal cancer‚ polyposis‚ or inflammatory bowel disease it is used to observe for continued progression of their condition. During the procedure
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couple of key things about lab safety and procedure during this experiment. While working with the hot plates‚ I learned to pay a lot of attention to whether or not the hot plate was plugged in or turned on‚ as well as whether or not the wax was getting too hot. Measuring each substance into the cup was an important experience because it taught me to be deliberate and careful when measuring so as to not waste materials‚ making sure we did not have to start over. While this lab is a good starting point
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