TSI test because there is no pink color for Urea test and no black color on the bottom of the tube in TSI test. Then‚ follow three tests results are all positive. That is deep blue color for citrate test‚ clear zone surrounding growth for skim milk agar
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there are structures called ascospores. It is these structures‚ ascospores‚ where genetic variation that arises from crossing over is easily seen (Davidson). The organism Sordaria Fimicola is a good example of this process because it is easy to grow on agar plates and because they are easy to be seen when looked at through a microscope (Davidson). There are three strands of Sordaria Fimicola used in this experiment; all were retrieved from an area known as the Evolution Canyon. The Evolution Canyon has
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same control on both sides of the knob and disinfect each side with different disinfectants. There were intervals of 4 minutes‚ in which we let the bacteria sit‚ and swabbed the bacteria off. Immediately after‚ we inserted the sample on a nutrient agar dish. Finally‚ we incubated the samples for approximately 2
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moved from one organism to another with the use of pGlo plasmids. It was hypothesized that if bacteria that were transformed with +pGlo plasmids are given the gene for GFP‚ then transformed cell colonies will be located on the LB/amp/ara and LB/amp agar plates. Cells that have been transformed with +pGlo plasmids have the ability to grow in ampicillin plates‚ and the arabinose sugar allows the colonies to be visibly fluorescent under ultraviolet light. The GFP is able to resist ampicillin because
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Abstract Introduction An antimicrobial is a substance that kills or inhibits the growth of microorganisms such as bacteria‚ fungi‚ or protozoans (Antimicrobial). Antimicrobial drugs either kill microbes or prevent the growth of microbes. Disinfectants are antimicrobial substances used on non-living objects or outside the body. Ginger Figure 1 : Ginger (Studies Reveal Ginger Lowers Colon Cancer Risk) Ginger is commonly used around the world and has been employed in the treatment‚ cure‚ and
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OBJECTIVE: 1. To distinguish the bacteria abilities to metabolize various substrates and end products formed. 2. To observe the growth of different bacteria species in term of structures and its morphology based on different chemical substance applied. 3. To observe physiological and immunological properties utilized by different species of bacteria. INTRODUCTION: Bacteria biochemical testing can determine the types and numbers in terms of colony forming units of bacteria present in a
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TSA (tryptic soy agar) media was placed in a different place to collect cells as well as printed with a thumb print from each member of the group. Incubation is used because each sample needed a certain temperature for the cells to grow. Inspection was used to look at each plate and see how many colonies are found. One TSA plate was placed wherever the student wanted in the building and the other was for each group member to press their thumb print in. The SBA (sheep blood agar) was used for a mouth
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MgSO4 .7H2O‚ 0.2; CaCl2‚ 0.55; NH4Cl‚ 0.4; agar‚ 1.5. A stock solution of the dye was prepared and used for all studies. The sample collected was screened for CV dye decolorizing bacterial strains by inoculating 10 ml of wastewater into flask containing 100 ml of MSM broth. The flasks were incubated at 35°C under shaking conditions (120 rpm). After 48 hr of incubation period‚ 1ml of the culture broth was appropriately diluted and plated on MSM-CV dye amended agar plates. The morphologically distinct bacterial
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cotton with the sterile water then rub gently over areas of the body assigned each group. 1 and 2 – mouth ‚ cheek‚ nose‚ ear‚ nape 3 and 4 – mouth‚ between toes and fingers‚ arm‚ throat 5 – mouth‚ ear‚ between fingers ‚ nose‚ arm 3. Swab the agar plates direct with the cotton swab by simple streaking. 4. Label the plates and incubate for 24 hours. 5. Examine the plates (note the colonies). Experiment #2Normal Flora of the Body | NA | Area Sampled | Color | Whole colony appearance
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The Results from the Gram positive tests indicated that the unknown #4 was Streptococcus pyogenes. All seven tests on the unknown matched S. pyogenes perfectly. The blood agar plate proved the unknown to be β hemolytic‚ meaning the unknown bacteria was capable of complete hemolysis. This test separated the unknown into the β Streptococcus group‚ narrowing the possible bacteria to S. aureus or S. pyogenes. The Catalase test was used to determine if the unknown could break down hydrogen peroxide
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