Biology, 26.03.2021 01:10, joseaguilaroux4zh
Explain the relationships and trade-offs among amounts of skin pigmentation, Vitamin D production, and protection from UV radiation.
Answers: 1
Biology, 22.06.2019 02:50, mccay5016987
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
Biology, 22.06.2019 09:40, damianfrasieanu5387
Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.
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Biology, 22.06.2019 10:30, keenansimpkinsoy0oqc
There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.
Answers: 1
Biology, 22.06.2019 16:00, ChanceJ
Need asap plz hurry im being timed when a body cell divides through the process of mitosis, the chromosomes in the daughter cells a. represent only the healthiest chromosomes from the parent cell. b. represent only half of the chromosomes in the parent cell. c. are identical to the chromosomes of the parent cell. d. are formed when chromosomes from the parent cell cross over.
Answers: 1
Explain the relationships and trade-offs among amounts of skin pigmentation, Vitamin D production, a...
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