Why did the gelatin tubes have to be moved to 4C before analysis? a. If gelatinase was produced the gelatin medium will remain as a liquid when chilled to 4C. O b. If gelatinase was produced the gelatin medium will return to a solid phase when chilled to 4C. O c. If the gelatin was hydrolyzed to its constituent amino acids the medium will turn red at 4C. d. If the gelatin was not hydrolyzed the medium will remain as a liquid when chilled to 4C.
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- wIn a denaturing protein electrophoresis, what might be thecauses that the electric current is equal to zero and the samples do not migratethrough the gel?Explain how gel filtration chromatography works. What type of gel will you used when the protein size is 2500 Da? Explain.23. A sandy soil is poured with a solution containing a positive dye (violet), what would be the most probable result? A. the leachate changes color (red), different from that of the color (violet) of the positive dye B. The leachate has the same color (violet) with that of the dye used C. The positive dye is retained in the sand D. The leachate becomes colorless/clear
- GELATIN b.how will you inoculate? c.How will you incubate? d. what are Post- Incubation procedures? e. How will you read the positive and negative results?write a short not on insoluble polymer matrix system of modified dosage form. question is related to pharmaceutical subject so this question accordingly.Describe how catalase test would have been done ??
- briefly explain: What is specifically being observed in Gelatin Hydrolysis test in one sentence?In the assay of citric acid, what do you think about the nature of solution sample ? a) Before titration and b) After titration.During two-dimensional gel electrophoresis, proteins are separatedbased ona. their net charge at a given pH.b. their mass.c. their ability to bind to a specific resin.d. both a and b.
- Need help Which of these could be used to measure the number of live bacterial cells in a liquid culture? a. do many serial dilutions of culture and plate on solid media b. measure the turbidity using a spectrophotometer c. examine one drop of culture under a microscope and gram stain d. measure the dry weight of cellsA 2x10-6 dilution of your bacterial culture yielded 10 colonies. What was the cell density (incells/ml) of your bacterial culture?Explain the differences between gel electrophoresis and column chromatography. Address the principles behind each separation. Why do large molecules migrate more easily in one method and with more difficulty in the other? Which method generated the most precise results?