After a few minutes turn the dish upside down. Let it stand at room temperature‚ or in an incubator‚ to allow the bacteria to grow. Observe the dish the next day and on several following days. Describe the color and shape of any bacterial colonies and other features you observe. Data and Observations While this picture that I have included
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This experiment tested the growth of E.coli with inserted plasmid on an agar plate with Ampicillin. One colony of E.coli resistant to Ampicillin was grown during this experiment. The overall goal of the experiment was to successfully grow E.coli on the agar plate‚ which would show that the plasmid had been effectively inserted into the bacteria’s genes. This experiment helped students understand how plasmids were inserted into bacteria and used in real life situations. It also showed how the bacteria’s
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transformation. We hypothesized that the bacteria will grow in petri dished 1‚ 2‚ and 4 (Figure 1). It is expected to see these three out of the four petri dishes contain growing bacteria; the fourth sample is predicted to die because they were untransformed cells in an ampicillin medium. Results: This experiment had four petri dishes containing the samples. They all had an LB medium. After being incubated overnight at 37°C‚ the first dish had the Ampicillin and transformed bacteria‚ the second had
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The results from the two petri dishes showed results that were anticipated. The Tap Water allowed the radish seeds to germinate with in the first 48 hours. In the petri dish labeled tap water‚ 10 out of 10 seeds sprouted into plant growth as seen in Figure 5.1. The radish plant growth within the tap water petri dish grew so well it started to lift the lid off the dish. The results from the Acid Rain (50% vinegar solution) did not allow any radish seeds to germinate. There were never signs of seed
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the sensitivity of Staphylococcus epidermis of specific areas on a petri dish. The antibiotics were gentamicin‚ novobiacin‚ and penicillin. This resembled a culture and sensitivity test that is preformed at the hospital’s laboratory to find out the resistance of a microorganism. This experiment was meant to use the naked eye and a magnifying glass when necessary. Procedures: This experiment called for prepared agar in a petri dish‚ smeared s. epidermis on the surface of the prepared agar‚ and a 3
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performed investigated if Dugesia prefer light or dark situations. Our group hypothesized that Dugesia would prefer the darker side of the petri dish more that the light side. This hypothesis was based on observations of the planarians before the experiment and the type of environment Dugesia are found in. We also noticed that the planarians preferred the edge of the dish‚ the most which is where the cover is the thickest allowing the least light through. We thought that the darker side would draw the most
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Constant Variable- The constant variable of my experiment is the agar used in my petri dishes and the brand of my dependent variable. Materials 5 Petri Dishes (prefilled) Clear desk tape Journal (to record data) 1 slice of bologna 1/2 tsp of ground cinnamon 1/2 tsp of ground black pepper
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towels 2 petri dishes 10 radish seeds Water Plastic container A weight A folded piece of paper Procedure 1. Take a paper towel and cut out two circles that are the same size as the base of the petri dishes. 2. Wet each paper towel circle with 5mL of water. 3. Put one wet circle into each petri dish and create raised ridges in the paper towel‚ creating a valley for each of the five seeds. 4. Put one seed in each valley. In the end‚ there should be 5 seeds in each petri dish.
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paper * pH meter * Petri dish x 3 * Measuring cylinder x 6 * Wooden stick * Distilled water * Tap water * Ruler Method 1. Test the distilled water and tap water for the pH level to see if it were neutral so it wouldn’t make a difference to the results. 2. Set up 3 petri dishes and 3 measuring cylinders 3. Measure 10mls of tap water. Add water to the petri dish and add 5cm of Sensodyne (toothpaste) into each petri dish and repeat this step 3 times
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cut using cork borer in the agar which was in the plate and removed the bored one with forceps. The incubate temperature‚ the date of the experiment and the name of students who did the experiment were wrote with a pen marker on the base of the Petri dish. Three drops of Amylase (A) and Water (W) were carefully transferred to the appropriate wells in each of the four dishes. The lids were replaced and the dishes were carefully transferred to the appropriate incubator. RESULTS Table 1: Our result
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