Biology

Biology, 29.10.2019 16:31, elise47

Which of these statements best describes the phenomenon of antibiotic resistance in bacteria?

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Health, 12.07.2019 09:30, CaptainKiller528

Which statement best describes antibiotic resistance? antibiotic resistance occurs when the body builds up a resistance to antibiotics. antibiotic resistance is a big problem in the united states, but not the world. antibiotic resistance can occur when bacteria are exposed to an antibiotic. antibiotic resistance occurs when antibiotics are not used.

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Biology, 25.07.2019 05:00, firdausmohammed80

Over the years, bacteria have become less sensitive to antibiotics used for medicinal and sanitation purposes. this lack of sensitivity is termed antibiotic resistance. how is antibiotic resistance an adaptation? a. antibiotic resistance makes it more difficult for bacteria to infect hosts, thus is a selective advantage for the host. b. the trait giving bacteria antibiotic resistance has reproductively isolated groups of bacteria. c. antibiotic resistance has caused antibiotics to become more specialized, thus adapting the antibiotics to particular bacteria species. d. the trait giving bacteria antibiotic resistance has become common, giving bacteria with the trait a selective advantage.

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Biology, 27.09.2019 15:10, sophx

Antibiotic resistance occurs when an antibiotic has lost its ability to effectively control bacterial growth. in other words, the bacteria are “resistant” and continue to multiply in the presence of therapeutic levels of antibiotic. which statement best explains this natural phenomenon in terms of darwin’s theory of natural selection. a. the antibiotics caused certain groups of bacteria to suddenly start producing enzymes that destroyed the antibiotic before it could harm the bacteria. b. when an antibiotic is used, bacteria that have a natural variation for resistance to the antibiotic have a greater chance of survival. c. although susceptible bacteria are killed or inhibited by an antibiotic, any offspring they produced before they died will be resistant to the antibiotic. d. the need to adapt or die caused some bacteria to become resistant to the antibiotic. this acquired resistance was passed into the future bacteria populations making them resistant.

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Biology, 07.11.2019 22:31, AmazingColor

The project that you are working on was initiated in response to the growing threat of antibiotic resistance in both hospital and community settings. even in the early discovery and development phase, it is important to think ahead to try to minimize the likelihood that bacteria will be able to evolve resistance to your new drug. understanding how resistance emerges is an essential part of this process.which of the following statements is not true regarding the evolution of antibiotic resistance in bacteria? a. due to natural genetic variation within populations, resistant bacteria will be present--even in the absence of antibiotic.b. the exposure of bacteria to an antibiotic causes the bacteria to produce resistance genes.c. resistance can emerge due to mutations in chromosomal genes.d. bacteria can acquire plasmids conferring resistance through horizontal gene transfer

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