Bone, 32,000
BCE, Europe
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Biology, 21.06.2019 20:30
Which of the following statements are true chromosomes make up genes
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Biology, 22.06.2019 00:30
One gene can influence trait(s). one trait can be determined by gene(s).
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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 06:30
Is there any solid scientific evidence that humans have been cloned?
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Mathematics, 21.06.2019 12:30
Mathematics, 21.06.2019 12:30
Biology, 21.06.2019 12:30
Mathematics, 21.06.2019 12:30
Biology, 21.06.2019 12:30
History, 21.06.2019 12:30