Which of the following is not a consequence of lack of conservation? A)
cost of additional wastewater treatment facilities
B)
water contamination from overirigation
C)
availability of land for use
D)
destruction of wildlife habitats

The use of dna as evidence in criminal investigations became possible because of the

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

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?