Biology, 14.07.2019 08:10 jocelyntucker
Jefferson’s class was studying sunflowers. they learned that sunflowers are able to make their own food. which parts of a sunflower collect most of the sunlight needed to make food? leaves flowers seeds roots
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Biology, 21.06.2019 18:30
What type of cell is produced after fertilization occurs and the gametes combines ?
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Biology, 21.06.2019 20:00
Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area
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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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Jefferson’s class was studying sunflowers. they learned that sunflowers are able to make their own f...
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