Biology

Biology, 17.07.2019 02:00, sdavenport84

Why does bacteria create a resistance to penicillin?

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Chemistry, 29.06.2019 05:00, OceanClaws

Doctors have fought infections with penicillin for over 50 years. recently, penicillin has not worked as well as before. which of the following explanations can account for this observation? a. some bacteria are resistant to the drug. the continued use of the drug has killed all of these bacteria. b. penicillin use has made all bacteria resistant to it. c. some bacteria are resistant to penicillin. the continued use of the drug has killed all but these bacteria. d. bacteria eat penicillin, so it is not effective anymore.

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Biology, 25.07.2019 23:40, newben

Penicillin is an antibiotic that was discovered in 1928. today, many species of bacteria have acquired resistance to penicillin. this adaptation occurred as the result of

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Biology, 27.08.2019 02:30, andreanelson5788

Scientists perform cellular transformation for a variety of different purposes. cellular transformation is not successful on all situations in which it is performed, however. a scientist conducts an experiment in which a bacterial culture is mixed with recombinant plasmids containing a gene for resistance to penicillin. the bacterial culture is then treated with penicillin. which of the following would indicate to the scientist that the recombination was unsuccessful? a. the bacteria that contain the plasmid survive. b. the penicillin kills the bacteria that were transformed. c.

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Biology, 28.09.2019 05:20, JojoSiwa901

Scientists perform cellular transformation for a variety of different purposes. cellular transformation is not successful on all situations in which it is performed, however. a scientist conducts an experiment in which a bacterial culture is mixed with recombinant plasmids containing a gene for resistance to penicillin. the bacterial culture is then treated with penicillin. which of the following would indicate to the scientist that the recombination was unsuccessful? a. the bacteria that contain the plasmid survive. b. the penicillin kills the bacteria that were transformed. c.

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