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Question:-
In an early log-phase E. coli population, there are 1 x 103 cells/ml the generation time of the cells is 30 minutes. How many cells would there be 60 minutes later?
a. 2X10^6
b. 8X10^3
c. 4X10^3
d. 2X10^3
e. 3X10^6
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- QUESTION 4The ability of a bacterial isolate to perform hemolysis can be regarded as an indication ofpotential pathogenicity. Briefly describe how you would test for this trait. QUESTION 5You are asked to recommend an antibiotic to treat this infection in an animal. Describe amethod which will allow you to make this recommendation. QUESTION 6The isolate you obtained appears to be very unique. Another laboratory has requested a sampleof the isolate for further research. To transport the isolate, you need to transfer it from an agarplate to a transport media broth. Describe the procedure you would use.Question:- Why does a medium containing antibiotics in transformation not distinguish all unsuccessful from successful ones? please answer quickly... it's very urgent!!!Please answer fast What must be added to M9 medium for a prototrophic E. coli strain to be able to grow? A. The M9 medium alone is sufficient. B. Glucose in addition to amino acids C. Glucose D. Glucose in addition to at least one other organic component E. Glucose in addition to nucleotides, amino acids, and lipids
- All questions a) Name structures P, Q and R. b) Name substance S . c) What is the enzyme encoded by gene I. Give its function. d) What will happen if substance S is absent in the medium?THIS IS A MULTIPART QUESTION, PLEASE ANSWER ALL THANK YOU You are studying two bacterias, bacA and bacB. bacB has increased levels of peroxidase but no catalase. On the other hand, bacA has increased levels of catalase but no peroxidase. For the first experiment, you add both bacA and bacB in a buffer containing hydrogen peroxide and NO iron. After analyzing the amount of hydrogen peroxide after 1 hr in the buffer alone, then buffer with bacA, then buffer with bacB, the data below is shown. A. Oxygen levels are also being measured in each of the 3 conditions from the experiment above. Create a graph of the expected O2 level results, explain the rationale and label title with axis B. Graph the expected NAD+ level results in the 3 conditions present, explain rationale and label title with axis C. On the second experiment, everything was repeated like the first however, this time iron was added to the buffer. Create a graph of the expected oxygen levels after the addition to iron…Calculate the generation time in a growth experiment in which a medium was inoculated with 5 X 106 cells/mL of E. coli cells and following a 1 hour lag, grew exponentially for 5 hours, after which the population was 5.4 X 109cells/mL
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