Describe results from a coagulase, DNase, and novobiocin test that would suggest a mixed culture was used for the tests, as opposed to a pure culture.
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Describe results from a coagulase, DNase, and novobiocin test that would suggest a mixed culture was
used for the tests, as opposed to a pure culture.
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- In the Methyl Red-Voges Proskauer test, the samples were not transferred into sterile tubes for developing the MR or VP test. Why weren't sterile tubes required?What test can help you differentiate staphylococci from streptococci? What reagent or media would be use? short answer onlywhat are the important principle in invertase test?
- What other test can be used to confirm the results obtained for a TEV infected tomato in an ELISA test? Name and very briefly describe one other test. Give the reason for your choice.What other test can be used to confirm the results obtained in this ELISA test? Name and very briefly describe one other test. Give the reason for your choice.At the station there is a 2 mL microcentrifuge tube containing sheep blood and 3 tubes containing the following solutions: 0 mM, 300 mM, 600 mM of sucrose. The tubes are randomly labelled A, B, C. 2 mL of each solution were transferred to a different microcentrifuge tube, 20 ul of blood were then added to each tube, and they were mixed well by inverting the tube for multiple times. They were observed and it was determined whether the solution in each tube was hypotonic (Yes or No) relative to the blood cells. In addition, the solutions were diluted with water to help you determine which solution is which sucrose concentration. What sucrose concentration corresponds with each tube? Tube Hypotonic (Yes/No) Hypotonic after 1:1 dilution with water (Yes/No) Most likely Sucrose concentration (mM) A No Yes B Yes Yes C No No
- If there is a sample having 3.5x10^5 CFU/ml, and this cell count came from a sample of the original culture which had been diluted 1x10^-4 times, what is the number of CFU/ml of the original culture?Interpret the tests in the images and identify the unkown bacteria for these testsExplain why culture based biochemical and genetic testing would not be the ideal method to identify the microbe.