Question 3ListenImagine that you took a stock of 1,000,000 pfu/mL of bacteriophage and made a series of dilutions by taking 1mLfrom the stock and adding it to 9mL of fresh broth. You then mixed that tube and repeated 2 more times, each timetaking 1mL and adding it to 9mL of fresh broth, for a total of 3 dilutions. THEN you added a few drops of E. coli andplated 1mL from your final tube on a TSA plate. What would you observe after 24 hours incubation? It might help todraw a picture. (How many plaques?)1101001,00010,000100,0001,000,000

In this case, we are examining a bacteriophage stock dilution setup, followed by E. coli infection…

Answered: Question 3 Listen Imagine that you took…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Similar questions

question 11 Explain the role of streptomycin in the lab. 1. Streptomycin was the bacteria to which we applied the antibiotic 2. Streptomycin refers to the spreading process that precedes incubation. 3. Streptomycin is the growth medium that bacteria require to grow. 4. Streptomycin was the antibiotic to which we exposed the bacteria
QUESTION 5You are asked to recommend an antibiotic to treat potential pathogenicityt in an animal. Describe a method which will allow you to make this recommendation.
Question 6 Which of the following is the correct sequence for the aseptic transfer of a bacterial culture? - 1. 2. 3. 4. 5. 6. 7. Remove the lid of the media receiving the culture & flame the mouth of this tube. - 1. 2. 3. 4. 5. 6. 7. Flame the mouth of the culture tube. - 1. 2. 3. 4. 5. 6. 7. Insert the wire loop with the culture to inoculate the bacteria on or in the new media. - 1. 2. 3. 4. 5. 6. 7. Reheat the mouth of the culture tube and replace the cap. - 1. 2. 3. 4. 5. 6. 7. Sterilize the loop by heating it from base to tip uniformly orange-hot. - 1. 2. 3. 4.…
Question 2 A spreader was used to 1. to uniformly disperse bacteria across the surface of the agar 2. to transfer bacteria from the test tube to the agar plate 3. to simulate mutations for antibiotic resistance 4. to disperse the antibiotic
Question 21>In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat.What hypothesis was being tested in the initial experiment with open versus sealed jars?A.The type of meat used affects the likelihood of spontaneous generation.B.Spontaneous generation can occur only if meat is exposed to air.C.Spontaneous generation is more likely during the long days of summer.D.Maggots do not arise spontaneously, but from eggs laid by adult flies.
QUESTION 3 3.1. Regardless of the specificity and sensitivity of a test, if the test results cannot be reproduced, the value and usefulness of the test are minimal. Name and briefly discussthe three (3) factors that contribute to the variation between test results of assessing diagnostic and screening tests.
Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.
QUESTION 10 Remdesivir is converted in vivo to CMP analog and then phosphorylated to CTP analog. a successful treatment for Ebola. There are more than 1 correct answers in the other choices. a potential chain terminator for the replication of RNA viral genome
Question 1 Inoculation for bacterial growth in an agar petri dish requires A. Incolating one species of bacteria per dish B. Host tissue so the bacteria can grow inside C. That the agar have nutrients D. Incubation in proper temperatures
QUESTION 41 You are doing research on a bacterium that undergoes gliding, not surprisingly you note the bacterium produces what? • A. capsule • B. hamus/hami • C. slime layer D. surface array layer (S layer) • E. stalk
QUESTION 24 Human immunodeficiency virus (HIV) is of interest to evolutionary biologists because all of the following, EXCEPT: a. Phylogenetics allow us trace epidemics and transmission pathways. b. Evolution of the virus has led to drug resistance and the need for multidrug treatments. c. Population demography and disease transmission can differ between populations. d. Resistant alleles are maintained in high frequency due to high selective pressure of the disease.
Question 7 On which of these plates would you be most surprised to see colonies of E. coli growing after incubation? 1. antibiotic resistant E. coli on streptomycin positive plate 2. antibiotic resistant E. coli on streptomycin negative plate 3. antibiotic non-resistant E. coli on streptomycin positive plate 4. antibiotic non-resistant E. coli on streptomycin negative plate

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