Biology, 11.12.2019 18:31 malachitorres813
Cells obtain energy by either capturing light energy through photosynthesis or by breaking down carbohydrates through cellular respiration. in both photosynthesis and cellular respiration, the energy is ultimately derived from the sun in a
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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 05:00
Explain how organisms could be harmed by high levels of salt from roadways?
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Biology, 22.06.2019 09:00
Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
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Cells obtain energy by either capturing light energy through photosynthesis or by breaking down carb...
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