Is a bacteriophage plaque assay a quantitative assay or a quantal assay? Explain your answer.
Homework Answers
Bacteriophage plaque assay is an example of quantitative assay . This is because it is used to find the quantity of the phage virus present in the sample. The plaque assay is used to purify the virus population to determine viral titer in pfu/ml(plaque forming units per ml). Since the quantity or amount of phage virus is used for the identification of the virus in a given sample, this is an example of quantitative assay.
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Is
a bacteriophage plaque assay a quantitative assay or a quantal
assay? Explain your answer.
In Chapter 21, we performed the plaque assay in which the T4 bacteriophage was used to...
In Chapter 21, we performed the plaque assay in which the T4 bacteriophage was used to infect E. coli strain B cells. Select one of the scenarios below, indicate the expected result, and describe what could have caused the observed result. You are asked to repeat the plaque assay using the T4 bacteriophage with E. coli strain B. After a 24 hour incubation period at 37°C, you observe no plaques on all of your plates. You are asked to repeat...
For the plaque assay, your T4 bacteriophage titer is 7.8x108 pfu/mL. You do six 1:10 dilutions...
For the plaque assay, your T4 bacteriophage titer is 7.8x108 pfu/mL. You do six 1:10 dilutions of the virus, putting 10µL of each dilution in a tube of top agar with 100µL of E. coli. After pouring the contents of the top agar onto an LA plate, you incubate overnight. How many plaques would you expect to see on the final plate?
Remaining Material For Lab Practical Final–Effects of Temperature and UV on Growth, Bacteriophage Assay, Normal Human...
Remaining Material For Lab Practical Final–Effects of Temperature and UV on Growth, Bacteriophage Assay, Normal Human Bacterial Flora, Antibiotic Sensitivity, Environmental Testing, and making Yogurt. Briefly describe the most salient points for each section. Section 2-9: Effect of Temperature on Growth Section 2-10: Effect of pH on Growth Section 2-13: Effect of UV on Growth Section 6-5: Bacteriophage Plaque Assay Section 5-24, and 5-25:Bacitracin, Novabiocin, Optochin Sensitivity Tests, and Blood Agar Section 8-12: Membrane Filter Technique Section 9-2: Making Yogrt
genetics Select the definition of a bacteriophage plaque. O O O O the bacteriophage capsid a...
genetics
Select the definition of a bacteriophage plaque. O O O O the bacteriophage capsid a bacterial cell producing more bacteriophage a visible region of infection-induced lysis of bacterial cells a bacteriophage colony If a single phage starts a replication cycle that results in 34 viable phage, how many phage can be produ after 3 replication cycles? Number phage
Could a plaque assay be used to detect a change in viral quantities like TCID50 assay...
Could a plaque assay be used to detect a change in viral quantities like TCID50 assay can. Why or why not?
You repeat the viral plaque assay adding 10 microliters of viral solution to 990 microliters of...
You repeat the viral plaque assay adding 10 microliters of viral solution to 990 microliters of LB. You perform this serial dilution five times. You add 10 microliters from each dilution to the corresponding host bacteria molten top agar mixture which is then spread onto an LB agar plate. The next day you count 39 plaques on the fourth plate. Why is it that on plate 3 the number of plaques will be 39 x 10^2 and on plate 5...
A plaque assay is performed beginning with 1 mL of a solution containing bacteriophages. This solution...
A plaque assay is performed beginning with 1 mL of a solution containing bacteriophages. This solution is serially diluted 4 times by combining 0.1 mL of each sequential dilution with 9.9 mL of liquid medium. Then 0.1 mL of the final dilution is plated in the plaque assay and yields 28 plaques.What is the initial density of bacteriophages in the original 1 mL? Recall that initial phage density = (plaque number/mL) × (dilution factor). (It is not A or C)...
In plaque assay, why is soft agar used in the top layer? Why is it important...
In plaque assay, why is soft agar used in the top layer? Why is it important that bacterial cells should be in the exponential phase for this experiment?
answer Determine whether the variable is qualitative or quantitative. Explain your reasoning Weight Is the variable...
answer
Determine whether the variable is qualitative or quantitative. Explain your reasoning Weight Is the variable qualitative or quantitative? Explain 0 A. The variable is quantitative because weight describes an attribute or characteristic. OB. The variable is quantitative because weight is found by measuring or counting O C. The variable is qualitative because weight is found by measuring or cryunting O D. The variable is qualitative because weight describes an attibute or characteristic Click to select your answer Previous
Answer and explain please Question A student infects his E.coli with Bacteriophage Lambda and then spreads...
Answer and explain please
Question A student infects his E.coli with Bacteriophage Lambda and then spreads his E.coli on a Tryptic Soy agar plate. He looks at his plates 2 days later and see bacteria growing (like a lawn) on his plate. What can he conclude about his bacteriophage infection other than that no infection occurred?
genetics
Select the definition of a bacteriophage plaque. O O O O the bacteriophage capsid a bacterial cell producing more bacteriophage a visible region of infection-induced lysis of bacterial cells a bacteriophage colony If a single phage starts a replication cycle that results in 34 viable phage, how many phage can be produ after 3 replication cycles? Number phage
answer
Determine whether the variable is qualitative or quantitative. Explain your reasoning Weight Is the variable qualitative or quantitative? Explain 0 A. The variable is quantitative because weight describes an attribute or characteristic. OB. The variable is quantitative because weight is found by measuring or counting O C. The variable is qualitative because weight is found by measuring or cryunting O D. The variable is qualitative because weight describes an attibute or characteristic Click to select your answer Previous
Answer and explain please
Question A student infects his E.coli with Bacteriophage Lambda and then spreads his E.coli on a Tryptic Soy agar plate. He looks at his plates 2 days later and see bacteria growing (like a lawn) on his plate. What can he conclude about his bacteriophage infection other than that no infection occurred?
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