7. to accomplish regulation in prokaryotes, operons (segments of dna) include specialized regions where a variety of regulatory proteins bind and detach to either initiate or inhibit transcription of the genes on that segment. (a) identify two of the proteins involved in the gene regulation in prokaryotes and their function. (b) describe the properties of the repressor that demonstrate it to be a protein. (c) discuss the evidence that proves it to be a repressor within the operon. (d) compare and contrast the roles of a repressor in an inducible system vs. its role in a repressible system.

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

What causes temperature extremes in the desert

Apart of an ecosystem that can restrict the growth of a population is referred to as