Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A student with Strep throat (caused by a strain of bacterium) is given a prescription for an antibiotic and is told to take the drug for two weeks. After a week, the student feels better and stops taking the drug. Two months later, the student again shows symptoms of Strep throat and decides to finish the leftover antibiotic rather than going to the doctor again. Two months later, the student develops Strep throat for a third time and returns to the doctor. This time, the antibiotic does not work. The doctor runs a test and discovers that the bacterial strain the student is carrying is antibiotic resistant. What most likely happened?A.Because the use of antibiotics lowers the effectiveness of the immune system, the student continually reinfected himself with the bacteria. The third time, the student happened to be reinfected with a resistant strain. B.When the student stopped taking the drug, a small number of bacteria-those that were more drug resistant-still survived in his body. Those bacteria repopulated his throat and over time, drug-resistant alleles became more common. C.The student must have eaten produce that had been genetically engineered with antibiotic-resistant genes. When he consumed them, the bacteria in the student's throat picked up these genes through horizontal gene transfer. D.The antibiotic caused mutations in the bacterium. The more exposure to the antibiotic, the more mutations. Even one random mutation can confer antibiotic resistance.
Suppose the diameer of a neutral helium atom is 1.40 x 10 to the second power pm. supposed that we could line up helium atoms side by side in contact with one another. How numerous atoms would it take to make the distance from end to end 9.00cm.
Why is the frequency of the sickle-cell gene different in North America versus Africa. Now what is your definition of male and female? This is a 26-year-old female with congenital adrenal hyperplasia. What do you say.
Which virus caused it? Why was a viral culture completed after the Gram and acid-fast stain results were obtained.
In most biology experiments the relationship between the independent and the dependent variable can be best described as cause and effect. Describe.
Discuss how do the amplitudes of the finger twitches with different weights compare to each other and explain why did the amount of work decrease when heavier weights were used?
After falling into an abandoned well, a young boy is rescued after he nearly drowns. find the treatment to restore this body to homeostasis.
Discuss these two laws of Thermodynamics and how they relate to the Law of Conservation of Matter. Which of the next may be the path of a protein from the site where its polypeptides are made to its export.
Suppose you are self making a hypothetical species. Can you suggest a type of genetic change that could have a drastic effect on the evolution of a species?
Explain plant life, animal life, and geology of the ecosystem in Utah. What populations and communities are present? How dependant is your community on this ecosystem? What are the preventive factors of the ecosystem.
Explaining the cellular respiration and therocess of photosynthesis of plants.
After a long scuba diving session on a Caribbean reef, David boards a plane to Denver. He begins to feel pain in his elbows on a flight back home to Denver.
To be able to run and play requires lots of energy. The Oreo supplies both dietary fiber and glucose that are metabolically quick energy sources.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd