Biology, 23.04.2021 01:00 Boogates7427
Repolarization begins as: voltage-gated sodium ion channels activate voltage-gated potassium ion channels activate voltage- gated potassium ion channels begin to close. sodium ions follow their electrochemical gradient into the cell.
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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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Nkentucky, intoxicating beverages (beer, whiskey, wine, etc.) are involved to some extent in approximately % of collisions fatal to pedestrians.
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Biology, 22.06.2019 20:00
What determines whether a particular cell is able to respond to a hormone?
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Repolarization begins as: voltage-gated sodium ion channels activate voltage-gated potassium ion cha...
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