8. The virulence of an organism may be enhanced by all the following except a. Its ability to produce exotoxins. b. Its ability to overcome body defense. c. Its ability to spread through the tissues. d. Its ability to grow on artificial laboratory media. 15. A scientist who studies the pattern of disease in a commun ...continues
Please confirm that I have chosen the correct answers. 29. The ability to mount an efficient secondary antibody response depends on a. Memory T and B cells b. High concentrations of IgA antibody c. Cross-linking of IgM antibodies d. All of the above are correct I choose answer (d) 32. A natural ...continues
Please help with the attached micro questions. Several questions have not been answered as I cannot find anything referring to the topic in my text. 1. Passive immunity can a. Involved an injection of antibodies b. Be acquired by a child from its mother c. Be administered with a convalescent serum d. All the above are cor ...continues
Generation time; doubling time
If the generation time is 90 minutes and the initial population contains 10^3 cells, how many bacteria will there be after 3 hours of exponential growth?
The use of antibiotics in animals is a very controversial issue. Do you feel that it is a bad idea to use antibiotics in animal feed or do you feel that the public is overreacting? Discuss the opposing view also. Choose a side and defend it.
Find the correct answer: The uniqueness of an individual is defined in part by the a. Type of antibodies produced by that individual b. Antigens to which the individual can respond c. Ability to produce T cells after passage through the thymus d. MHC proteins on the surfaces of the individual’s cells.
1.Herschley-Bulkley Model Please describe in detail this model indicating the meaning of each parameter and their range. Please list and describe alternative THREE PARAMETER Models. 2.Creep Test Please describe in detail this test and explain why is so useful in characterizing viscoelasticity. 3.Relaxation test ...continues
MIC Calculation & Dilution series
The MIC of penicillin for Staphylococcus epidermis was determined to be in tube #5. The starting concentration was 1000g/ml in tube #1 and a 5-fold dilution was performed. What is the MIC? Show how you would do the dilution series?
A culture was determined to have 5.4 x 10^6 CFU/ml. Design a stepwise protocol to determine this number. For practice use different volumes of diluent and diluate.
Draw a concept map using the words in the list below. Then write a paragraph summarizing your map – it should be clear from your summary that you understand the meaning and significance of each term on the list, and where it fits into the overall concept. (Your diagram may take any form – flow chart, circle diagram with a ce ...continues
