Biology, 11.10.2019 16:50 RiddleMeThis
What is the name of the very thin muscle that separates the pleural cavities from the abdominal cavities?
Answers: 2
Biology, 21.06.2019 15:00
What is the mrna strand that would be copied from this dna strand
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Biology, 21.06.2019 22:00
Explain why phospholipid molecules form a bilayer. (3 marks)
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Biology, 22.06.2019 02:30
Are the earth's ocean floor and continents the same age geologically? why or why not?
Answers: 1
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?
Answers: 1
What is the name of the very thin muscle that separates the pleural cavities from the abdominal cavi...
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