Homework Answers
We can confirm that whether our food is contaminated or not.Toxic residues of bacteria in food and beverage samples can be analyzed with test kits for bacterial toxins. Common test formats for microbial food testing are ELISA assays, real-time PCR tests, nutrient plates and agar plates. For detection of pathogenic bacteria, immunological based methods (ELISA) are available.
No,it didn't confound my interpretation of mutagenicity.
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14. How can you be certain the substance from home was not contaminated with prototrophic bacteria?...
14. One bacterial pathogen can cause symptoms of gastroenteritis in 2 hours after ingestion of contaminated...
14. One bacterial pathogen can cause symptoms of gastroenteritis in 2 hours after ingestion of contaminated food and another pathogen requires 3 days to cause disease. How do the pathogenic mechanisms of these bacteria differ that explains the difference in incubation time.?
The estimated spontaneous mutation rate for Salmonella strain A is: _____71____________________. The estimated spontaneous mutation rate...
The estimated spontaneous mutation rate for Salmonella
strain A is: _____71____________________.
The estimated spontaneous mutation rate for Salmonella
strain B is: _______13__________________.
The estimated spontaneous mutation rate for the E.
coli strain is: ___________29______________.
Why might Salmonella strain A and B and the E.
coli strain have different spontaneous mutation rates? Think
about which strain may have a better DNA repair system and how
membrane permeability can affect mutation rates.
Based on the number of colonies per plate, when do...
3. Give an example of how the proper disposal of contaminated objects can break a link...
3. Give an example of how the proper disposal of contaminated objects can break a link in the chain of infec . You notice a corworker anizing surgical insrumens in preparation fo nts in preparation for sterilization. He did not scrub the serrations on the instruments well. What will be the result of his improper sanitization te your answer 5. Describe e eight procedures/techniques that you could perform or assist with on a patient that could ex you to bloodborne...
Please explain! Eight mutant bacteriophage strains cannot lyse a certain type of bacteria that can be lysed by wild-typ...
Please explain!
Eight mutant bacteriophage strains cannot lyse a certain type of bacteria that can be lysed by wild-type bacteriophages. The mutant strains were allowed to infect the bacteria in a complementation test. A"+ indicates that lysis occurred with coinfection. A -indicates that lysis did not occur A cistron is defined by no complementation in the configuration. How many genes are controlling lysis in this bacteriophage? (Use a number not a word in the space) Which of the following strains...
A certain type of bacteria is growing at an exponential rate that can be modeled by...
A
certain type of bacteria is growing at an exponential rate that can
be modeled by the equation y = ae^(kt), where t represents the
number of hours. There are 100 bacteria initially, and 500 bacteria
5 hours later.
or 201 growing s hours lter the rate of growth, k, of the btria Loe or erms of logarithms that can model the growth of the hacteria at time, Ltave your answer in terms of logarithms #10. Round your answer to...
3. How can a bacteria accumulate multiple resistance genes from other bacteria _________________?
3. How can a bacteria accumulate multiple resistance genes from other bacteria _________________?
What is hemolysis? How do you test the hemolytic activity of certain bacteria? What kind of...
What is hemolysis? How do you test the hemolytic activity of certain bacteria? What kind of hemolytic activity do you know?
The growth of a certain strain of bacteria can be modeled by (t) = Noekt, where...
The growth of a certain strain of bacteria can be modeled by (t) = Noekt, where No is the initial number of bacteria, t is the time elapsed in minutes. The doubling time for the growth of the bacteria is 88 minutes. Suppose that there are 4000 bacteria initially present. After how many minutes will there be 67,000 bacteria? 349 minutes 346 minutes 355 minutes 369 minutes 358 minutes Tries 0/3 Submit Answer This discussion is closed. Send Feedback
water pathogens bacteria A certain committee consists of 5 people. From the committee, a president, a...
water pathogens bacteria A certain committee consists of 5 people. From the committee, a president, a vice-president, and a secretary are to be chosen. In how many ways can these. offices be filled? Assume that a committee member can hold at most one of these offices. (If necessary, consult a list of formulas) X SP A certain committee consists of 5 people. From the committee, a president, a vice-president, and a secretary are to be chosen. In how many ways...
The number of grams A of a certain radioactive substance present at time, in years from...
The number of grams A of a certain radioactive substance present at time, in years from the present, t is given by the formula A=45e^-0.0045t What is initial amount of this substance What is half-life of this substance How much will be around in 2500 years
The estimated spontaneous mutation rate for Salmonella
strain A is: _____71____________________.
The estimated spontaneous mutation rate for Salmonella
strain B is: _______13__________________.
The estimated spontaneous mutation rate for the E.
coli strain is: ___________29______________.
Why might Salmonella strain A and B and the E.
coli strain have different spontaneous mutation rates? Think
about which strain may have a better DNA repair system and how
membrane permeability can affect mutation rates.
Based on the number of colonies per plate, when do...
3. Give an example of how the proper disposal of contaminated objects can break a link in the chain of infec . You notice a corworker anizing surgical insrumens in preparation fo nts in preparation for sterilization. He did not scrub the serrations on the instruments well. What will be the result of his improper sanitization te your answer 5. Describe e eight procedures/techniques that you could perform or assist with on a patient that could ex you to bloodborne...
Please explain!
Eight mutant bacteriophage strains cannot lyse a certain type of bacteria that can be lysed by wild-type bacteriophages. The mutant strains were allowed to infect the bacteria in a complementation test. A"+ indicates that lysis occurred with coinfection. A -indicates that lysis did not occur A cistron is defined by no complementation in the configuration. How many genes are controlling lysis in this bacteriophage? (Use a number not a word in the space) Which of the following strains...
A
certain type of bacteria is growing at an exponential rate that can
be modeled by the equation y = ae^(kt), where t represents the
number of hours. There are 100 bacteria initially, and 500 bacteria
5 hours later.
or 201 growing s hours lter the rate of growth, k, of the btria Loe or erms of logarithms that can model the growth of the hacteria at time, Ltave your answer in terms of logarithms #10. Round your answer to...
The growth of a certain strain of bacteria can be modeled by (t) = Noekt, where No is the initial number of bacteria, t is the time elapsed in minutes. The doubling time for the growth of the bacteria is 88 minutes. Suppose that there are 4000 bacteria initially present. After how many minutes will there be 67,000 bacteria? 349 minutes 346 minutes 355 minutes 369 minutes 358 minutes Tries 0/3 Submit Answer This discussion is closed. Send Feedback
water pathogens bacteria A certain committee consists of 5 people. From the committee, a president, a vice-president, and a secretary are to be chosen. In how many ways can these. offices be filled? Assume that a committee member can hold at most one of these offices. (If necessary, consult a list of formulas) X SP A certain committee consists of 5 people. From the committee, a president, a vice-president, and a secretary are to be chosen. In how many ways...
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