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Biology, 29.07.2019 07:30 jessica6597
Dr. jonas salk is associated with a vaccine for rabies polio cholera smallpox
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Biology, 21.06.2019 15:50
Based on the results of this study, what questions remain unanswered? how can these questions guide future research
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Biology, 22.06.2019 02:50
Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?
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Dr. jonas salk is associated with a vaccine for rabies polio cholera smallpox...
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