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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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Biology, 22.06.2019 09:30
What is the difference between a scientific hypotheses and a scientific theory?
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Biology, 22.06.2019 11:00
Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2
Answers: 2
is the term applied when one gene interferes with the expression of another...
English, 31.10.2019 17:31
Social Studies, 31.10.2019 18:31
Mathematics, 31.10.2019 18:31
English, 31.10.2019 18:31
Mathematics, 31.10.2019 18:31
Mathematics, 31.10.2019 18:31
Mathematics, 31.10.2019 18:31