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- 2. Explain any four ways that the knowledge acquired from environmental microbiology can be applied in the current fight against the current COVID-19 pandemic raging havoc against the human population.3. CAN YOU EXPLAIN the many internal and external elements that affect a healthcare facility's culture?3. What modern molecular genetic methods are used to identify microorganisms?
- 12. When a person is determining the concentration of a sample, they will frequently repeat the samemeasurement of a sample by preparing three or more identical tubes (i.e. make replicates).a) Although you did not set up replicates today, what would be the purpose of setting upreplicates?b) If you had tested three replicates of test tube #2 in the determination of glucoseconcentration, what would you do with the data from the three replicates?2. Microbes also acquire genetic variation through transformation, transduction, and conjugation (gene transfer). These mechanisms often come into play when conditions are harsh. Explain genetic variation.35. Can you correct and explain ones i got wrong
- 1. Contrast Bioarchaeology and Forensic Anthropology.1. In Microbiology, are there technologies that can help make bacterial culture and sensitivity done faster? Provide evidence of use in the Philippines.1. Pertussis, also known as whooping cough, is a communicable disease in humans. It is caused by the bacterium Bordetella pertussis, and it affects the respiratory tract. The number of cases of pertussis that were reported in Canada between 1924 and 2011 is represented in the bar graph below. Number of reported cases Reported Cases of Pertussis in Canada, 1924-2011 25000 20000 15000- 10000- 5000 0- 1924 1934 1944 1954 1964 1974 1984 1994 2004 2009 Year a) Describe how vaccination helps prevent someone from getting pertussis. b) Based on the graph, approximately when do you think a vaccine became available in Canada? Explain your answer. c) Scientists discovered that the vaccine that was given to children between the 1980s and 1997 was not very effective. In 2003 a booster vaccination was given to those effected people. How this is reflected in the graph data?
- 2. Unbeknownst to Surrena, the actual reason for her headache is not the noise generated by her 20 young cousins, but a bacterial infection caused by eating a piece of turkey that had been left out too long. At 4:00pm, the piece of turkey was host to a colony of 20,000 bacteria. By 7:00pm, the colony had grown to 300,000 bacteria. (a) Assuming that the bacteria continued to reproduce at the same relative (percent) rate, how many bacteria were on the piece of turkey when Surrena ate it at 8:45pm? (b) Ingesting just one bacterium usually will not cause an infection but ingesting enough bacteria usually will (if the bacteria can live and reproduce inside of the human body). Biologists often talk about the “infectious dose” (or ID50) of bacteria necessary to cause an infection in 50% of infected hosts. Assuming that the ID50 for this particular strain of bacteria is 100,000 bacteria, when is the latest that Dr. P could have eaten the turkey and had only a 50% chance of getting infected?are likely to be more reproductively isolated from one another than 20. a. A and C; B and C b. B and C; A and C c. A and C; A and B d. B and C; A and B B3. Suppose you do the Kirby-Bauer test on a hypothetical Staphylococcus species with penicillin and tetracycline. You record diameters of 20mm for tetracycline and 24mm for penicillin. Which antibiotic is most effective against this bacterium and why? Please explain and interpret these results. 4. There were a variety of different types of control methods used into today's lab (i.e. hot sauce, mouth wash, alcohol, etc.). Which one(s) do you think will work effectively and why? Think about what part of the cell would be affected by the control and explain.
