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The tryptophan operator... A is an allosteric protein. binds to the tryptophan repressor when the repressor...
here is the diagram ecause there is no repressor protein attached to the operator, what enzyme...
here is the diagram
ecause there is no repressor protein attached to the operator, what enzyme con attach to the promoter and move past the operator to transcribe the structural genes? Color this enzyme pink "color the repressor gene purple and the repressor protein it codes for red. Examine the shape of the repressor protein. 45) Is it an active or inactiverepressor protein? The diagram below shows the trp operon when turned off." Repressor gene Promoter Operator Structural genes DNA...
For regulation of the trp operon, what happens to in the absence of tryptophan? repressor protein...
For regulation of the trp operon, what happens to in the absence of tryptophan? repressor protein (a) It binds to the operator, and represses transcription of genes in the trp operon (b) It cannot bind to the operator, and transcription of genes in the trp operon takes place (c) It binds to the regulatory gene that codes for the TrpR repressor, and represses its transcription (d) It cannot bind to the regulatory gene that codes for the TrpR repressor, and...
The trp operon is considered to be repressible because: 1.The repressor binds to the operator, blocking...
The trp operon is considered to be repressible because: 1.The repressor binds to the operator, blocking RNA polymerase from transcribing, unless tryptophan is ABSENT 2.The repressor binds to the operator, blocking RNA polymerase from transcribing, unless tryptophan is PRESENT 3.The repressor binds to RNA polymerase at the promoter to help it find the -10 sequence 4.The trp operon has five genes that code for enzymes needed to synthesize tryptophan, only expressed when trp is PRESENT
1. If tryptophan interacts with a repressor protein (which it does in real life) and the...
1. If tryptophan interacts with a repressor protein (which it does in real life) and the trp operon is anabolic (which it is) a. What would happen to tryptophan production levels and energy expenditure in a mutant bacterial cell that had a repressor protein that was incapable of binding to tryptophan (but was normal in every other way) b. What would happen to tryptophan production levels and energy expenditure in a mutant bacterial cell that had a repressor protein that...
A mutation in the operator of the trp operon prevents the repressor to bind to the...
A mutation in the operator of the trp operon prevents the repressor to bind to the operator, even in the presence of tryptophan. What is true with respect to the bacteria carrying this mutation? Select one: a. The bacteria will transcribe the genes of the trp operon even when tryptophan is present in the environment b. Tryptophan would not be able to bind to the repressor protein c. Small amounts of tryptophan will be lethal for the bacteria d. The...
In terms of the Trpoperon, where would the Trp operon repressor protein most likely bind? Drag...
In terms of the Trpoperon, where would the Trp operon repressor protein most likely bind? Drag the "Trprepressor" label to the location where that repressor protein is most likely to bind and exert its effect on the system. (A Trprepressor Trp operon Trp operator F D C B A E. coli DNA promoter mRNA molecule series of enzymes required for tryptophan biosynthesis
Allolactose acts as a signal molecule that binds to the LacI protein (repressor) and prevents it...
Allolactose acts as a signal molecule that binds to the LacI protein (repressor) and prevents it from binding to the Operator on the lac operon. But if the repressor is on the operator, no B-glactosidase can be made which means no allolactose can be made in the first place. So how is the repressor removed so allolactose can be made to stop the repressor from binding?
When lactose is absent: 1. Is the repressor protein bound to the operator? 2. Is gene...
When lactose is absent: 1. Is the repressor protein bound to the operator? 2. Is gene transcription regulated on or off? When lactose is present: 1. Is the repressor protein bound to the operator? 2. Is gene transcription regulated on or off?
When E coli has access to tryptophan in the environment, the trp repressor protein (does or...
When E coli has access to tryptophan in the environment, the trp repressor protein (does or does not) bind to the (operator or activator) and the trp genes (are or are not) transcribed. Select the correct answer in the ( ).
answer the following questions about lac operon: a) if the lack repressor protein is bound to...
answer the following questions about lac operon: a) if the lack repressor protein is bound to the operator, are the E.coli metabolized lactose or not? explain your reasoning. b) If the lack repressor protein is bound to the operator and cellular glucose levels are low, is cAMP-CAP complex bound adjacent to the promotor, or not? explain your reasoning. c) if the lack repressor protein is bound to the operator and cAMP - CAP is bound to the CAP site, are...
here is the diagram
ecause there is no repressor protein attached to the operator, what enzyme con attach to the promoter and move past the operator to transcribe the structural genes? Color this enzyme pink "color the repressor gene purple and the repressor protein it codes for red. Examine the shape of the repressor protein. 45) Is it an active or inactiverepressor protein? The diagram below shows the trp operon when turned off." Repressor gene Promoter Operator Structural genes DNA...
For regulation of the trp operon, what happens to in the absence of tryptophan? repressor protein (a) It binds to the operator, and represses transcription of genes in the trp operon (b) It cannot bind to the operator, and transcription of genes in the trp operon takes place (c) It binds to the regulatory gene that codes for the TrpR repressor, and represses its transcription (d) It cannot bind to the regulatory gene that codes for the TrpR repressor, and...
A mutation in the operator of the trp operon prevents the repressor to bind to the operator, even in the presence of tryptophan. What is true with respect to the bacteria carrying this mutation? Select one: a. The bacteria will transcribe the genes of the trp operon even when tryptophan is present in the environment b. Tryptophan would not be able to bind to the repressor protein c. Small amounts of tryptophan will be lethal for the bacteria d. The...
In terms of the Trpoperon, where would the Trp operon repressor protein most likely bind? Drag the "Trprepressor" label to the location where that repressor protein is most likely to bind and exert its effect on the system. (A Trprepressor Trp operon Trp operator F D C B A E. coli DNA promoter mRNA molecule series of enzymes required for tryptophan biosynthesis
When lactose is absent: 1. Is the repressor protein bound to the operator? 2. Is gene transcription regulated on or off? When lactose is present: 1. Is the repressor protein bound to the operator? 2. Is gene transcription regulated on or off?
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