my research competitor heard about my brilliant evolution studies and decided to also pursue evolutionary studies...

my research competitor heard about my brilliant evolution studies and decided to also pursue evolutionary studies in E. coli. She also inoculated 2 genetically identical populations to cells and has maintained these cultures for the past 15 years (population 1 and population 2). she has also noted a significant change in one of her populations in recent generations. In population 2, the cscR gene was duplicated in this population of cells (a second copy of the gene is now present on the bacterial chromosome). cscR is the sucrose operon repressor, the gene that codes for the repressor protein for the sucrose operon.

How might this duplication affect the functioning of this operon in the presence and absence of sucrose? provide rationale.

Do you predict that this difference in sucrose utilization will influence the evolutionary potential of this population? explain.

Expert Solution

Please find the answers below:

Answer 1: According to the information, the new population has a duplicate copy of the cscR gene which is a repressor gene for sucrose operon. This means that expression of this gene will lead to accumulation of sucrose in the cells and thus the sucrose can be utilized as a carbon source for generation of energy. Hence, duplication of this gene will even enhance this operon effect and the sucrose metabolism will be highly regulated in these cells, making them dependent upon this only sugar for metabolism and survival.

Answer 2: As the dependency of these bacteria on sucrose will increase, their evolutionary trend will also enhance. This is because the mutant population has emerged in the culture after nearly a period of 15 years, thus a rondom mutation might have taken place which generated the metabolic difference. This makes the population highly plastic in reference to metabolism and evolution. If the sucrose is available in the growth medium appropriately, these cells would be able to survive for many generations and this random mutation will be established in the new population, hence evolve from the master strain.

gladiator answered 2 years ago

Write a synthesis paper about evolution of research

1. Which of the following statements about evolution and ecology is TRUE? Evolutionary processes and ecological...

1. Which of the following statements about evolution and ecology is TRUE? Evolutionary processes and ecological processes can occur on similar time scales. Evolution by natural selection is generally not mediated by ecological phenomena (such as predation). The evolution of a population will not affect how its members interact with individuals of other species. Rapid evolution is possible only when a population's chemical environment changes quickly. 2. After common ragweed reached Japan a century ago and escaped their leaf beetle...

Have you heard about research that suggests that childhood immunizations are associated with the development of...

Have you heard about research that suggests that childhood immunizations are associated with the development of autism? Have you heard that the publication that reported this research and it’s principal author have been discredited? Why do you think that many parents are still very fearful about having their children immunized? Your posts should be at least 300 words in length

How about risks related to platform or environment? Have you heard "it worked on my machine"?...

How about risks related to platform or environment? Have you heard "it worked on my machine"? while it does not work on another machine. As we move on to the development, we will face similar issue in teams, please share experience how did you team solve this problem.

, conduct research about a competitor company within the same sector as HOME DEPOT using IBIS...

, conduct research about a competitor company within the same sector as HOME DEPOT using IBIS World and other topic resources. Complete a competitor analysis that includes a minimum of three ratios and compares your company to a competitor company using these ratios to determine financial performance as well as how the company compares to overall industry averages. Justify your analysis by explaining your findings.

You’ve also heard me talk about how economists are looking at all sorts of micro indicators...

You’ve also heard me talk about how economists are looking at all sorts of micro indicators – like electricity usage, to get a sense of how bad the situation is (while they wait for the lower-frequency macro data to be collected.) North vs. South Korea are a good indicator of how prosperous they are relative to each other based on satellite images of their night-time electricity usage. (Google it!). What are economists finding out electricity usage during the time of...

Have you heard about Software Defined Networking (SDN)? If not, please do some research and find...

Have you heard about Software Defined Networking (SDN)? If not, please do some research and find out about SDN and discuss briefly at least two advantages of using SDN.

How has the research changed your perspective about the topic or about banking? I had my...

How has the research changed your perspective about the topic or about banking? I had my research paper on how the Federal Reserve being lender-of-last-resort (LOLR) effected failing investment banks during the Financial Crisis of 2007-2009. At the time, I had no idea how drastic this event was since I was not as interested in financing, lending, or the mortgage industry. After researching the topic more in depth, it really put into perspective just how close to an economic collapse...

Which statement about sample size in qualitative research is true? A. Sampling for qualitative studies should...

Which statement about sample size in qualitative research is true? A. Sampling for qualitative studies should stop before information becomes redundant. B. If the quality of data being collected is exceptionally good, a smaller sample may suffice than when data are of mediocre quality. C. New researchers who have a fresh eye on phenomena can rely on smaller samples than more experienced researchers. D. Typical case sampling requires more participants than maximum variation sampling.

Subject Merger and Acquisition 1. What do research studies say about the premiums paid and the...

Subject Merger and Acquisition 1. What do research studies say about the premiums paid and the event returns from international M&A activities? What are the reasons provided in the literature behind the premiums paid?

Question