1) A bacterial strain called XYZ living in the lake MBG223 near Bilkent University requires to...

1) A bacterial strain called XYZ living in the lake MBG223 near Bilkent University requires to synthesize tryptophan continuously. The reason is, the essential proteins (essential means, the proteins required for survival of the bacteria) contain high content of tryptophan. Therefore, this bacterial strain XYZ has a tryptophan operon. Unfortunately, the tryptophan level of nutrition available in lake MBG223 is very limited during summer and winter time and the other nutrition levels are high. During the summer time, as the lake MBG223 partially evaporates, the salinity of the water increases, the temperature of the lake arises and the pH of the environment turns from natural to acidic. Changes in salinity, pH and temperature is known to disrupt hydrogen bonding in nucleotide base-pairings and also the structure of the proteins. Here, assuming that the structure/function of the proteins are not effected please answer the following.

İnside the XYZ bacteria, what would you observe with regards to synthesis of tryptophan bearing proteins during summer vs. winter time? How would this effect bacterial growth rate during the summer time vs winter time?

2)In another neighboring lake called MBG222, they found a different bacterial strain called WOWWW to have mutant tRNAs on the anti-codon region of the tRNA. This tRNA carries Phenylalanine to wherever it encounters the sequence UGG (tryptophan) on the mRNA. What happens to the regulation of the trypthophan operon in bacteria that has 1) high tryptophan and low phenylalanine vs. bacteria that has low tryptophan and high phenylalanine?

Solutions

Expert Solution

gladiator answered 1 year ago

Next > < Previous

Related Solutions

A bacterial strain called XYZ living in the lake MBG223 near Bilkent University requires to synthesize...

A bacterial strain called XYZ living in the lake MBG223 near Bilkent University requires to synthesize tryptophan continuously. The reason is, the essential proteins (essential means, the proteins required for survival of the bacteria) contain high content of tryptophan. Therefore, this bacterial strain XYZ has a tryptophan operon. Unfortunately, the tryptophan level of nutrition available in lake MBG223 is very limited during summer and winter time and the other nutrition levels are high. During the summer time, as the lake MBG223 partially evaporates,...

A bacterial strain called XYZ living in the lake MBG223 requires to synthesize tryptophan continuously. The...

A bacterial strain called XYZ living in the lake MBG223 requires to synthesize tryptophan continuously. The reason is, the essential proteins (essential means, the proteins required for survival of the bacteria) contain high content of tryptophan. Therefore, this bacterial strain XYZ has a tryptophan operon. Unfortunately, the tryptophan level of nutrition available in lake MBG223 is very limited during summer and winter time and the other nutrition levels are high. During the summer time, as the lake MBG223 partially evaporates,...

Horizontal Gene Transfer Q:1. A strain of living Streptococcus pneumoniae that cannot make a capsule is...

Horizontal Gene Transfer Q:1. A strain of living Streptococcus pneumoniae that cannot make a capsule is injected into mice and has no adverse effect. This strain is then mixed with a culture of heat-killed Streptococcus pneumoniae that when alive was able to make a capsule and kill mice. After a period of time, this mixture is injected into mice and kills them. In terms of horizontal gene transfer, describe what might account for this. Q:2. A Gram-negative bacterium that was...

Berkley Pit lake 1. What types of microbes would one expect to be living in such...

Berkley Pit lake 1. What types of microbes would one expect to be living in such polluted water? 2. Suggest some possible ways that microbes survive and even thrive under such conditions. 3. Identify an environment similar to the Berkeley Pit. Describe the environment, the pollutant and the possibility of environmental hazard, if you think it would cause one..

1. The owner and manager of a duplicating service near a major university, is contemplating keeping...

1. The owner and manager of a duplicating service near a major university, is contemplating keeping his shop open in the evening until midnight. In order to do so, he would have to hire additional workers. He estimates that the additional workers would generate the following total output (where each unit of output refers to 100 pages duplicated). If the price of each worker hired must be paid $150 and the price of each unit of output duplicated is $10,...

1) The transcription of many bacterial genes relies on groups called operons. What advantages are there...

1) The transcription of many bacterial genes relies on groups called operons. What advantages are there to having genes arranged in an operon, compared to the arrangement of genes in eukaryotic cells? 2)What characteristic of DNA results in the requirement that some DNA synthesis is discontinous ? How are Ozaki fragments and DNA ligase utilized by the cell? Please only answer in sentences.

Problem 1: How much time do Americans living in or near cities spend waiting in traffic,...

Problem 1: How much time do Americans living in or near cities spend waiting in traffic, and how much does waiting in traffic cost them per year? The file Congestion includes this cost for 31 cities. (Source: Data extracted from “The high Cost of Congestion,” Time, October 17, 2011, p.18.) a) Compute the mean, median, first quartile, and third quartile. b) Compute the range, interquartile range, variance, and standard deviation. c) Compute the covariance between the time spent sitting in...

1) W XYZ Limited is evaluating Project X , which requires an initial investment of RO40,000...

1) W XYZ Limited is evaluating Project X , which requires an initial investment of RO40,000 . The expected net cash flows are RO15,000 pa for five years at today's prices . However these are expected to rise by 6.0 % pa because of inflation . The firm's cost of capital is 13 % . Find the NPV by : ( a ) discounting money cash flows ( b ) discounting real cash flows . 2) XYZ Limited is evaluating...

1. As part of an environmental studies class project, students measured the circumference of a random sample of 45 blue spruce trees near Brainard Lake, Colorado.

Please show all work, step by step: a. The critical value b. the error bound c. The minimum and maximum numbers of the interval. On interpretations include information about the specific problem. 1. As part of an environmental studies class project, students measured the circumference of a random sample of 45 blue spruce trees near Brainard Lake, Colorado. The sample mean circumference was x = 29.8 inches. Assume that o is known to be 7.2 inches. a. Find a 90%...

This assignment requires using the Excel add-in called Solver... 1. Can a linear programming problem have...

This assignment requires using the Excel add-in called Solver... 1. Can a linear programming problem have no solution? More than one solution? Explain. 2. To find the optimal solution to a linear optimization problem, do you have to examine all the points in the feasible region? Explain.

Subjects